I Feel the Need for .45 Speed!

The Doubletap Ammunition .450 SMC rounds work from a standard +P rated .45 ACP pistol.

The Doubletap Ammunition .450 SMC rounds work from a standard +P rated .45 ACP pistol.

Sometimes we shooters do things because, well, why not? It’s as good reason as any, right?

At first glance, the .450 SMC cartridge may appear to fall into the “why not” category. When you start to look at specifics and potential use cases, it can make a whole lot of sense.

What’s a .450 SMC you ask?

What if I told you…

  • That you could launch a .451 160 grain projectile at .357 Sig velocities?
  • That you could blast a standard .45 ACP 230 grain bullet 32 percent faster?
  • That you could break 1,300 feet per second with an 185 grain .45 projectile?
  • That you could shoot a 255 grain hard cast bullet from an autoloading handgun?
  • And most importantly, that you could do these things from your existing .45 ACP pistol?

Sound farfetched? Nope. Assuming you have a .45 ACP pistol that’s rated for +P .45 ACP ammunition, you can shoot the .450 SMC to obtain this type of performance, and more. As we speak, Doubletap Ammunition offers five different loadings of .450 SMC.

Whose crazy idea was this?

In late 2000, a company called Triton launched the .450 SMC. Similar to the .45 Super, one primary difference was the use of a small rifle primer, theoretically allowing more brass in the cartridge base for strength. Alas, Triton didn’t last, and the .450 SMC faded away.

Fortunately for us speed freaks, the Godfather of Boom!, Mike McNett, founder of Doubletap ammunition picked up the rights and tooling for the .450 SMC cartridge, and it’s now commercially available again.

What is the .450 SMC?

Note the small rifle primer on the .450 SMC case on the left.

Note the small rifle primer on the .450 SMC case on the left.

Hopefully, it’s obvious that you can’t simply jam more powder into a standard .45 ACP cartridge case to obtain this type of performance. It’s a little more complicated than that, especially considering that the .45 ACP was designed as a low-pressure cartridge running at about 20,000 psi. There’s margin in the design, but you don’t want to go and drive pressure through the roof.

The solution is to use a different case while keeping the same dimensions. The .450 SMC uses a small magnum rifle primer rather than the standard large pistol primer of the .45 ACP. The small rifle magnum provides plenty of ignition power, but the smaller primer pocket means more brass at the cartridge base, hence a stronger case. As a result, Doubletap Ammunition can load the case with five to six thousand more pounds per square inch of pressure than a standard .45 ACP. Also, the stronger case prevents bulging even in a less-than-ideally supported chamber like a Glock 21.

As of now, Doubletap Ammunition is the only provider of .450 SMC. Founder Mike McNett bought the tooling and is now having a good old time loading lots of .450 SMC in various combinations. And I’m having a good old time shooting it.

Read the rest at AmmoLand!

Beretta’s ARX100: A Quick Tour

 

The Beretta ARX100 is designed to be a Transformer.

The Beretta ARX100 is designed to be a Transformer.

I’ve never watched the Transformers movies, but if my understanding is correct, those flicks were about 1974 AMC Gremlins morphing into deep fried banana splits, thereby earning free admission to the Texas State Fair. Or something along those lines.

Even if I’m a bit off in my understanding of the Transformers plot, you have to admit the idea of effortless transformation on demand is a pretty cool thing. Politicians do it all the time based on poll numbers and density of cameras within 25 yards, so why shouldn’t rifles be able to perform the same feat?

Getting back to the point, since I’m writing this on the Beretta Blog, let’s talk about transformation with respect to the new Beretta ARX100 rifle. Its family heritage is the ARX160 – a 21st century rifle designed for the Italian (and other) militaries and law enforcement organizations. As a result, some mondo engineering has been applied to make this rifle fit not only a wide variety of potential shooters, but also easily adapt to a broad range of requirements. If you haven’t noticed, people come in all shapes and size. Some do most things, including shooting, with the right hands, while others buck the trend and use the left side. Folks are also tall, short and everywhere in between. Don’t even get me started on accessories preferences as it seems no two people on the North American continent can agree on exactly how a rifle should be equipped with optional gear.

Apparently the main design goal of the Beretta ARX100 is to not only accept all these physical and opinion differences, but embrace them. The rifle has been designed to be instantly customizable in many, many ways. Most importantly, all this customization can be done without tools – that’s where the engineering magic comes in.

With all that said, let’s take a quick tour, from back to front. In a future article, we’ll do a deep dive on how the ARX100 operates and shoots. For now, we’ll focus on how it’s put together.

Read the rest at Beretta USA!

Princeton Tec’s Switch MPLS Hands-Free Light

The Princeton Tec Switch MPLS offers not only a variety of mounting options, but a gooseneck lamp extension so you can point light where you need it.

The Princeton Tec Switch MPLS offers not only a variety of mounting options, but a gooseneck lamp extension so you can point light where you need it.

If you partake in nocturnal activities like fishing, hunting, camping, pub crawling or recreational coal mining, you need a personal light. To keep your hands free for whatever activity you do, you’ll want a light that you can mount  on your hat, clothing or gear.

I’ve been working with the neat little piece of gear to fit this need called the Princeton Tec Switch MPLS. It’s a tactical light, but really more than that. You can use it for a wide range of activities that require “working-level” illumination.

I originally got it to use for general navigation and administrative tasks while at the Crimson Trace Midnight Three Gun event. Last year I made the mistake of using a small white LED lamp equipped on the bill of my hat. It sounded like a great idea at the time, but I quickly learned that people don’t appreciate the use of bright white light as it tends to spoil everyone’s night vision. Red, blue or green LED lights are much more eyeball friendly in dark conditions.

Talking with the folks at Princeton Tec, I explained that I didn’t yet know how I was going to mount the light. Since the light would be used for loading guns and magazines, taping and resetting targets, and finding the next stage in the pitch dark, a handheld light was out of the question. Since I didn’t know how I wanted to mount this new light we decided to try out the Switch MPLS system.

The battery and lamp of the Switch are contained in a housing that’s designed to accommodate multiple mounting attachments. Since the lamp is at the end of a short gooseneck fixture, you can orient the lamp independently from the body and mount of the unit.

The standard Switch MPLS comes with two mounting options:

MOLLE: You can mount the Switch MPLS to a load-bearing vest or backpack.

MICH: If you wear a helmet for a living, this is probably your best mounting option. With firm attachment to the lower side, the light is pre-oriented towards the front and it’s easy to reach for activation and deactivation. A screw clamps the mount firmly to the helmet.

If you need different mounts, just order the MPLS Accessory kit which has these additional mounting adapters:

PICATINNY:  You can mount the Switch MPLS to a compatible rifle rail, or more practically, any range box, case or other accessory with a rail segment. Of course, you can always attach a Picatinny rail segment to just about anything, so use your imagination for solutions such as internal vehicle mounting.

ACH-ARC helmet rail mount.

Four mounting options are available - two included and two more available as options.

Four mounting options are available – two included and two more available as options. In this photo, the light it mounted on the MOLLE adapter.

The Switch MPLS has three light modes: low-intensity color, high-intensity color and 10 lumen white light. You can order models with red, blue, green or infrared light. All models have the white light option included.

One of the things I like most about this piece of gear is the built-in protection against the user whipping on that bright white light inadvertently. To activate the default red light, just press the main button. To make the red light a little brighter, press it twice. If you really want white light, and are sure you’re not going to ruin your, or your buddy’s night vision, you have to hold the button down for a couple of seconds. This, and only this, activates the bright white light, so you have to be very deliberate about wanting the white light activated.

Cool piece of gear – check it out. You can find them at street prices of about $50.

The Making of a Timney Custom Trigger

If you want to get maximum accuracy from your rifle, check out a Timney Trigger upgrade.

If you want to get maximum accuracy from your rifle, check out a Timney Trigger upgrade.

If you’re in the business of eking every last bit of performance out of an already fine-tuned product, you have to have a relentless, bordering on obsessive, sense of attention to detail.

Looking at the factory floor of Timney Triggers, the compulsive behavior quickly becomes apparent. I’m sure you’ve heard the phrase “you could eat off the floor” before. At Timney Triggers, you really can. Well, actually you can’t, because eating off the floor would get it dirty. This place is seriously clean and polished. Even the brass outlet covers and ventilation grates on the factory floor are shined. I suspect even a Marine Corps Drill Instructor would have to begrudgingly express satisfaction.

The folks at Timney wouldn't let me eat off the factory floor as I would have gotten it dirty.

The folks at Timney wouldn’t let me eat off the factory floor as I would have gotten it dirty.

According to Timney Triggers owner John Vehr, this fanatical approach to organization and cleanliness sets the tone for the level of detail that goes into product design, manufacture, testing, shipping and most of all, service. After all, he wants Timney to be known not for products and inventions, but their service. “I want Timney to be the Kleenex of triggers, so people say ‘Check out my Timney’ instead of ‘Check out my trigger.’” The company intends to get to that point my removing internal competition and focusing all efforts externally. “When we no longer compete with each other, but rather outside competitors, it turns out we’re competing with companies that are competing with themselves,” says John. Every one of Timney’s 22 employees signs posters on the wall that detail Timney’s five commitments and Collaborative way. The fact that Timney has virtually no turnover seems to indicate the corporate culture investment is working.

I recently had the pleasure of spending a day touring the (relatively) new Timney manufacturing facility just north of Scottsdale, AZ to see just how Timney trigger parts and assemblies are made. Hint: It’s a fascinating process which is a lot different than you might imagine. Let’s take a look.

Calvin the mad scientist-engineer working on a new design.

Calvin the mad scientist-engineer working on a new design.

The process starts in the spacious work area / lab / office / studio occupied by mad scientist Calvin. New gun candidates for Timney aftermarket trigger are racked up near Calvin’s desk awaiting scanning with a three-dimensional video imaging system. This captures exact dimensions of the internal receiver space that a potential Timney Trigger product has to occupy.milling machines along a back wall, we didn’t see any powered up the day we were there.

 

Read the rest at OutdoorHub!

 

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Beretta’s ARX100: A Closer Look

As the exterior appearance indicates, the Beretta ARX100 is a complete redesign.

As the exterior appearance indicates, the Beretta ARX100 is a complete redesign.

If you made me describe one thought about the Beretta ARX100, it would be something along the lines of “ambi-flex-trous.”

Yes, you can easily reconfigure this rifle in all sorts of ways, which we’ll discuss in a minute, but the interesting thing is you can do all of it with a bullet. Macho, isn’t it? So far, I have yet to use a single tool of any kind for reconfiguration. Well, there was one exception. I did need a wrench to remove the factory flash hider, but I don’t think that counts as it doesn’t fall into the category of routine maintenance. Don’t tell the Beretta folks I applied wrenches and a bench vise to their loaner rifle, OK?

Let’s take a closer look.

As the ARX100 is a pistol-operated rifle, there's no buffer tube to prevent a folding stock. It shoots in this configuration too.

As the ARX100 is a piston-operated rifle, there’s no buffer tube to prevent a folding stock. It shoots in this configuration too.

The ARX100 looks large and potentially heavy, but it’s not. Judicious use of polymer keeps weight down and unloaded, it tips the scales at just 6.8 pounds. While the stock appears monolithic in design, it breaks into an upper and lower receiver, although the dividing lines are different than the upper and lower components of an AR rifle.

The butt stock is connected to the upper receiver half through use of a hinge, which allows the rifle to operate like a pistol. While the intent is easier transport, shooting with a folded stock feels very Buck Rogers. Since the rifle is piston operated, there’s no buffer tube in the way of pistol operation. The butt stock itself has four different positions to adjust length of pull.

The rifle is covered in web sling attachment points. A rotating swivel is in front of the gas block. The butt has a web sling loop. There are two flat sling loops on each side of the receiver for a total of six.

Rails are also abundant. The entire top surface of the rifle is a continuous rail, so there is no “joint” between receiver rail and forend rail as with an AR rifle. Four-inch rail segments are located up front in the three and nine o’clock positions. There’s a 1 ½ inch rail segment on the bottom in front of the forend cover. If you need to attach a 40mm grenade launcher, remove the lower cover and you’ll find a proprietary rail segment for this purpose. Because military-style rifle. Word is that Beretta may offer a Picatinny adapter at a later date.

It comes with non-standard height sights. They'll get you going, but may not co-witness with your optic.

It comes with non-standard height sights. They’ll get you going, but may not co-witness with your optic.

The ARX100 comes with polymer flip up sights so you can shoot it out of the box. The front sight features a standard, height-adjustable post while the rear has a rotating aperture dial where apertures are calibrated for ranges of 100 to 600 meters. Be aware that these sights are taller than standard AR models, so they may not co-witness as you like. No worries, by pressing a button on each, you can slide them right off the rail if you don’t want them present.

The trigger is all military all the way. It’s big and wide, set in an oversized trigger guard for easy access with gloves. The pull weight leaves something to be desired, measuring 8 1/2 pounds for me, but at least it was smooth and not gritty. The trigger components are held in place by pins, so assuming demand is there, aftermarket companies like Timney should be able to offer replacements.

Read the rest at GunsAmerica!

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What a Difference a Trigger Makes

Will adding this to an AR rifle improve accuracy?

Will adding this to an AR rifle improve accuracy?

Gun shop wisdom says a good trigger makes all the difference.

It should be obvious that replacing the trigger doesn’t have any physical impact on a rifle’s accuracy. It’s not like it synchronizes barrel harmonics to the tune of “You’re So Vain” or anything. A trigger doesn’t touch the barrel or impact flight path, yet everyone swears it makes a rifle more accurate.

That’s kind of true. But it doesn’t make the rifle more accurate, it makes it easier for you, the shooter, to get the best accuracy that the rifle is capable of. This is an important distinction.

The reason is that pesky physics thing. When a rifle takes several pounds of pressure to break the shot, and the rifle itself only weighs several pounds, it’s gonna want to move, at least a little bit. A good trigger, with a smooth action and reasonably low pull weight, is going to make it easier for you to break the shot without moving the sight alignment of the rifle. When you’re trying to extract every last fraction of an inch of accuracy, a little bit of unwanted movement means a lot on the target.

According to John Vehr, President of Timney Triggers, “There is only one reason to upgrade a trigger in a firearm – to make you more accurate with the firearm.  A great trigger will allow you to become more accurate by eliminating physical factors like drag, creep and heaviness – Less movement equals better accuracy.  A great trigger will allow the shooter to make the act of pulling the trigger more of a mental decision that a physical decision.  A great trigger is an extension of the mind and should break exactly when the shooter calls for the shot.”

I shot groups with proven accurate handloads before and after the Timney Trigger installation.

I shot groups with proven accurate handloads before and after the Timney Trigger installation.

Gaining more practical accuracy by using a custom trigger sounds great in theory, but I wanted to put it to the test in a quantifiable way.

I decided to take two rifles of proven quality and accuracy, but with less than optimal triggers, and test their accuracy before and after a trigger upgrade. The folks at Timney Triggers sent me an AR-15 Competition trigger for the test. This trigger, the 3 pound 667 model, is a self-contained unit with drop-in installation.

My thought for the test was simple. Shoot groups of 5 shots each with each rifle with its standard factory trigger. While at the range, swap the trigger for the Timney AR-15 Competition trigger, and reshoot the groups. Same ammunition, same rest, same day, same atmospheric conditions and same shooter. When all was done, I figured on applying some common core math to compare the average group sizes before and after. Then I realized that this article was due in 2014, so I skipped the common core stuff and added, subtracted and averaged the old fashioned way.

Read the rest at AmmoLand!

Sig Sauer’s Single Action Sensation: The P226 Elite SAO

That's right, there's no decocking lever on this Sig P226!

That’s right, there’s no decocking lever on this Sig P226!

I like action. Who doesn’t?

Single action. Traditional double action. Double action only. Striker-fired action. I like ‘em all. But I especially like single action handguns. Having only one thing to do, release the hammer, single actions tend to be easier to shoot accurately. Repeatable accuracy leads to confidence, and confidence is something I want in spades if I’m carrying a gun for protection.

With that goal in mind – a carry gun that inspires confidence – I checked out the new Sig Sauer Elite SAO. Unlike most traditional Sig Sauer pistols, this one is a single action – kind of like a 1911. Its got an ambidextrous safety lever. You carry it cocked and locked. In fact, outside of cosmetic differences, one of the few

The safety levers on this model are ambidextrous and of equal size on both sides.

The safety levers on this model are ambidextrous and of equal size on both sides.

observable things different from a 1911 is that the Sig has a hinged trigger while the 1911’s trigger moves straight back like a sliding door.

OK, so that’s some gross over-simplification. The Sig P226 Elite SAO has classic Sig internals – not the hinged recoil action and barrel bushing we’re accustomed to seeing in a 1911. Yet it offers the benefits of a constant, light trigger to aid in accurate shooting. Unlike the 1911, it offers a double stack magazine so you get 15 rounds of ammo, plus an extra in the chamber. Oh yeah, and it’s chambered in 9mm, not .45 ACP.

I keep mentioning 1911’s as a comparison, but if you want to get more specific, you can think of the Sig P226 Elite SAO as a combat version of the P226 X-5 Competition. While the X-5 Competition models are built as elite pistols for professional competitors, they’re not necessarily suited for defensive or combat use. You’ll find allen screws all over the place on a competition X-5 model as the design allows specific adjustment to nearly every aspect of the gun’s operation. Trigger weight, trigger travel, trigger over travel, trigger shape, magazine well style, compensators, flux capacitors and so on. You can also find similarity with the P226 X-5 Tactical model, but the Elite SAO has a 4.4 inch barrel instead of 5 inches. Corresponding overall length dimensions are shorter and weight of the Elite SAO is about one ounce less.

Read the rest at GunsAmerica!

Thinking about getting a gun for personal or home defense? Or maybe for recreation or competition? Then you need to read this first!

Trijicon’s 300 Blackout Optic Offering: It’s Simple and Fast

While a bit slimmer, Trijicon's 300 AAC Blackout model shares many of the same features that made ACOG's so popular.

While a bit slimmer, Trijicon’s 300 AAC Blackout model shares many of the same features that made ACOG’s so popular.

The 300 AAC Blackout caliber is a nightmare for optics manufacturers.

Why? The range of possible projectiles and associated ballistics are crazy. 300 Blackout can be a flat shooting cartridge using a light bullet at 2,500 feet per second. It can be a thrown-brick projectile weighing 245 grains and traveling at 950 feet per second. It can also be just about anywhere in between those extremes.

Like classic ACOG's, the 300 Blackout model features dual illumination sources: fiber optic and tritium.

Like classic ACOG’s, the 300 Blackout model features dual illumination sources: fiber optic and tritium.

Imagine trying to design an optic with ballistic drop compensation (BDC). In plain English, BDC simply means that the reticle is pre-marked to show the hold point for a given distance. For example, if you’re shooting at a target 200 yards away, you just hold the 200 yard reticle mark on the target, and you should make a hit. That’s great in theory when you have a caliber with fairly standard performance over distance like the .223 Remington 55 grain projectile. When a caliber can fire a range of bullet weights ranging from 90 grains to 245 grains, things get tricky.

To put that in perspective, if you shoot a 300 Blackout cartridge with an 110 grain Barnes TAC-TX projectile, traveling at 2,500 feet per second, it will drop about 64 inches at 400 yards, assuming a zero yard zero. If you do the same thing with a 220 grain Sierra Matchking traveling at 1,050 feet per second, that bullet will drop almost 278 inches over the same distance.

The difference in drop between two difference loads in the exact same caliber is a whopping 214 inches. That’s 17.83 feet. To put that in visual terms that’s equivalent to 3.147 Michael Bloomberg’s stacked on top of each other or 4.13 AMC Gremlins. Sorry for two entirely different, yet equally scary, visuals.

Enter the Trijicon TA33-C 3×30 ACOG 300 AAC Blackout

The 30mm objective lens provides plenty of light.

The 30mm objective lens provides plenty of light.

Trijicon has taken a whack at this ballistic challenge by using a single reticle, but marking it with realistic and common hold points for both extremes of the 300 AAC Blackout performance range. We’ll get more into that in a minute.

Like other Trijicon ACOGs, the 300 Blackout model is a fixed power magnification design. This one offers straight 3x magnification, which is plenty sufficient for realistic subsonic and supersonic ranges.

The fixed magnification means no zoom rings or controls and generous eye relief, so it’s really fast and efficient. Also like most other Trijicon optics, it’s designed to use the Bindon aiming concept. In Trijicon’s words, “Human vision is based upon a binocular (two eyes) presentation of visual evidence to the brain.” In plain English, that means keep both eyes open. Your brain does magic brain stuff and you see your target with reticle superimposed. The reason is that the Trijicon uses a bright reticle, which allows your brain to merge the target image from your outside eye with the aim point visible through your “scope” eye.

Like other siblings in the ACOG family, this model has a dual illuminated reticle. The distinctive fiber optic tube across the top collects light to amplify the aim point when ambient light exists. An internal tritium lamp provides illumination in low light and pure dark conditions. No controls to turn on or adjust, you just use it, regardless of light conditions. My evaluation model came with a green reticle, but you can also choose amber or red if you like. The green reticle shows up plenty in broad daylight. In low light conditions, the visibility is even better.

Zeroing

For initial zeroing, the optic has two removable caps that cover the windage and elevation dials. Using a dime, empty cartridge case or screwdriver blade, move the dials as needed. Each click will adjust the point of impact by ¼ inch at 100 yards.The arrows on the adjustment dials indicate the direction you want the bullet to move on the target. Simple. My unit came pre-centered and only required a couple of clicks of windage and elevation adjustment to match the point of impact of my Daniel Defense DDM4v5 300 AAC Blackout rifle.

Windage and elevation adjustment dials are a one-time use affair, or whenever you significantly change your primary supersonic ammo choice.

Windage and elevation adjustment dials are a one-time use affair, or whenever you significantly change your primary supersonic ammo choice.

This ACOG includes a handy reference point on the reticle that simplifies zeroing. When installing on a new rifle, set a target at 25 yards. Instead of using the cross intersection as you would for a 100 yard target, use the pointed top of the long distance 300 meter post, which is the same as the top of the 50 yard subsonic diamond, as a hold point. If your shot impact matches that, the 100 yard zero using the cross above will be pretty close. Now move your target to 100 yards and verify that the 100 yard supersonic aim point matches point of impact.

The reticle

The reticle is simple, yet has both hold point (ballistic drop compensation) and basic ranging tools. It’s also parallax free so it works from zero to 600 meters without the need for parallax adjustment.

The ballistic drop compensation features are clever in their simplicity. Rather than cluttering up your view with lots of marks, Trijicon has figured out how to make the few marks that are there multitask. For example, the primary aim point for 100 yards (supersonic ammo) is a free-floating cross. For 200 yards, there is not a separate mark, you simply hold on the bottom of the crosses vertical post. Horizontal hash marks indicate 300, 400, 500 and 600 yard supersonic projectile hold points.

The Trijicon ACOG TA33 Blackout reticle.

The Trijicon ACOG TA33 Blackout reticle.

For subsonic rounds, there are two solid diamonds on top of the vertical bar: one above the 300 yard supersonic hold point and the other resting on the 400 yard hold. These are 50 and 100 yard holds for a standard subsonic round.

I zeroed the Trijicon at 100 yards with 110 grain supersonic ammunition. Then I popped in a subsonic rounds put the 50 yard whole point directly over the bullseye on a 50 yard target. The very first shot hit dead center, so that was encouraging.

The reticle also includes basic ranging indicators. The horizontal BDC marks vary in width to represent a 19 inch wide target. If a known object of 19 inches matches the width of one of the crossbars, there’s your range. If it’s in between two, you can guesstimate.

Closing Thoughts

The Trijicon ACOG TA33 300 Blackout model is a fast no-brainer solution. With fixed 3x magnification, there’s nothing to fiddle with. Raise your rifle, open your eyes and go. The two eyes open concept works great unless you’re cross-eye dominant and establishing aim is fast. The reticle offers enough granularity to hit reasonable sized targets out to a few hundred yards. For a tactical or home defense rifle, I do like the “always” on reticle lighting. In the daytime, the fiber optic tube makes the reticle glow brightly and in low light conditions, a tritium lamp lights it up. No batteries to run down and no switches to operate – it’s just on.

 

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Beretta’s ARX100: A Lesson In Flexibility

Beretta's ARX100 may look like a space gun, but its primary feature is easy configurability.

Beretta’s ARX100 may look like a space gun, but its primary feature is easy configurability.

There’s ambidextrous, and there’s ambidextrous.

Some rifles have safety levers on one side, or at least a safety lever that can be relocated to the opposite side of the frame. Others might have a way to move the magazine release button or even bolt release to the opposite side.

The Beretta ARX100 takes configuration flexibility to a whole new level.

The left side looks... almost exactly like the right side.

The left side looks… almost exactly like the right side.

I just got my hands on a sample unit of this rifle and have been shooting it, taking it apart, and shooting it some more. Rather than waste words here with the specs like weight and length – you can find those here – I’ll focus on how this rifle operates and handles.

For starters, let’s take a look at the many components of what I think is the ARX100’s standout feature: flexibility.

Barrel

Once the bolt is in the maintenance position, pull down these tabs and the barrel pops right off.

Once the bolt is in the maintenance position, pull down these tabs and the barrel pops right off.

You can swap barrels on a standard AR-type rifle, it just takes some doing.

On the Beretta ARX100 with its default 16-inch barrel, it takes no doing and no tools. Just move the bolt to the maintenance position – I’ll describe that in a minute. Then you can pull two spring-loaded levers downward, and the barrel and extension will release and pull right out the front of the stock. The gas piston assembly comes out attached to the barrel.

The process could not be easier. Unlike an AR-type rifle, you have complete and unobstructed access to the barrel and extension with all those nooks and crannies for easy cleaning. Wow. Impressive simplicity and functional too.

Seeing how this works, I was concerned about the ARX’s ability to hold zero through a barrel change. Hold that thought until we get to the shooting report.

Read the rest at OutdoorHub!

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A Closer Look at the SilencerCo SWR Octane Pistol Suppressor

SilencerCo SWR Octane 45 mounted on a Glock 26

SilencerCo SWR Octane 45 mounted on a Glock 26

After waiting long enough for three additional square inches of my hair to turn gray, I finally received my permission slip from the BATFE to take possession of my SilencerCo Octane 45 suppressor. Having collected dust in my local FFL’s safe for over 10 months, it’s now mine.

The Octane is a silencer made by SilencerCo, or more accurately SWR. SWR is now a part of SilencerCo, although the brand still appears. The Octane model is designed for pistol calibers, yet is rated for full automatic pistol caliber carbine use. It can also be used in the 300 AAC Blackout, provided you stick to subsonic rounds – it’s not rated for supersonic projectiles. If you try to fire supersonic cartridges through it, the moon is likely to plummet into downtown Possum Kingdom, South Carolina. But seriously, don’t do it. It’s not made for those high-pressure spikes.

Caliber choices

The Octane is available in 9 mm and 45 ACP. I chose the 45 model for flexibility. You can shoot 9 mm, 40 caliber, 45 caliber, 300 Blackout or even 380 ACP. You can also use it on a .22, but that might be a bit silly given the size of the unit.

The only drawback to using the 45 model with smaller calibers is that you lose a couple of decibels of sound reduction because it has a bigger hole in the front. For me, that trade-off was easy. I have incredible flexibility on which guns I can mount a suppressor. Buy one, and cover all of your compatible handguns.

By purchasing different pistons and/or fixed mounts, you can use the Octane 45 with a variety of pistol calibers.

By purchasing different pistons and/or fixed mounts, you can use the Octane 45 with a variety of pistol calibers.

Shooting silently

I’ve used the SilencerCo SWR Octane 45 on four different guns so far including a Glock 26, a Glock 31, a Beretta 92FS and a Daniel Defense DDM4v5 300 Blackout rifle.

For use with the Glock pistols, I used Lone Wolf threaded barrels. These not only provided extra length and threading for silencer attachment, they also use traditional rifling which allows for more liberal use of lead bullets in the Glock. In the case of the Glock 31, which is a .357 Sig chambering, I cheated a bit and ordered a Lone Wolf .40 S&W threaded barrel. As magazines and recoil springs functionally the same, this barrel swap converted my .357 Sig to a .40 S&W. A Glock 31 is now a Glock 22, at least until I swap the barrels again. One more thing on the Glock configurations. Use of Crimson Trace Lasergrips on both models allowed for a great sighing option. The laser is offset just enough to bypass the suppressor.

I converted this Glock 31 to a Glock 22 using a Lone Wolf threaded barrel. It worked beautifully with Winchester Train subsonic ammunition.

I converted this Glock 31 to a Glock 22 using a Lone Wolf threaded barrel. It worked beautifully with Winchester Train subsonic ammunition.

The Beretta 92FS solution is relatively simple. The 92FS doesn’t come with a threaded barrel, but the barrel does extend far enough past the slide to allow a qualified gunsmith to add threading. Companies like Gem-Tech or Tornado Technologies can thread your existing barrel, or you can buy a second barrel which is pre-threaded and that’s what I elected to do so I could keep my factory barrel in its original configuration. Oh, the Crimson Trace Lasergrip solution works great on the Beretta 92FS as well.

A classic combination: Beretta 92FS + Silencer

A classic combination: Beretta 92FS + Silencer

The Daniel Defense rifle was the easiest of all to configure. Remember, the Octane 45 is a pistol silencer, so use subsonic ammo only if mounting it on a 300 Blackout rifle. Using some heat to loosen the factory Loctite, I removed the flash suppressor and direct mounted the silencer using a fixed mount on the Octane. Be sure not to use the compression washer that might already be in place as that can prevent your silencer from mounting perfectly parallel to the bore.

The standard Beretta 92FS barrel extends far enough past the slide to add threading.

The standard Beretta 92FS barrel extends far enough past the slide to add threading.

While any pistol ammo is fun with a silencer, the best solution is subsonic ammo. For the 9mm guns, I particularly liked American Eagle’s 147 grain flat point full metal jacket ammo. With a velocity of about 950 feet per second, it was super quiet using the Octane. Function was also perfect in both the Glock 26 and Beretta 92FS.

For the Glock 31, now converted into a Glock 22, I used subsonic hand loads and .40 caliber Winchester Train ammo. Use of an 180 grain projectile at 925 feet per second resulted in some seriously quiet shooting.

For the 300 Blackout, I used a variety of hand loads constructed with 220 grain Sierra Matchking bullets and factory ammo from Gorilla Ammunition. Gorilla offers a great subsonic round made with Hornady 208 grain A-MAX bullets.

Pieces and parts

Figuring out what parts you need is a little bit confusing. Let me see if I can simplify things here.

First, you will need to know which kind of mount you need based on your gun’s design. Your gun will come in one of two configurations. Either the barrel will be fixed to the frame, and not move upon firing or it will have a recoil operated action where the barrel moves, tilts or rotates as part of the recoil process.

If you have a recoil operated action gun, things are a little complex. Successful operation of a semi-automatic handgun requires many forces to balance in perfect harmony. When the cartridge fires, the slide moves backward a short distance, carrying the barrel with it. The barrel tilts downward, disconnecting from the slide, and the slide then continues on it’s own all the way to the back of it’s cycle. At this point, the recoil spring starts to push the slide forward again. This choreographed movement of the bang-bang process has to be perfect for a gun to function reliably every time.

Adding the weight of the silencer to the barrel can disrupt this perfectly orchestrated routine. So now, when the gun recoils it has to drag the weight of the silencer along with it. The rearward travel may be slower to the point of not completing the cycle. Forward motion from recoil spring pressure may also be slowed.

The solution in the case of the SilencerCo SWR Octane is what’s called a booster mount.

The booster mount makes this Glock 26 function perfectly.

The booster mount makes this Glock 26 function perfectly.

Instead of a rigid connection to the barrel, a free-floated pistol is connected to the gun barrel. The pistol is spring mounted inside the silencer body, allowing movement back and forth. The piston can actually move a little bit, with resistance provided by the spring. The spring action of the pistol inside the silencer actually assists the recoil action of the gun, increasing the likelihood of reliable function.

Here’s how the pistol system works. Pardon the complete bastardization of scientific principles OK?

If you hold the pistol frame with one hand and pull the silencer away from the gun with the other, the piston remains fixed in position, but the silencer body and internals move away from the bore under pistol spring tension. When you fire the gun, the explosion of hot gas coming out the muzzle pushes the body of the suppressor forward against booster spring pressure. At that point, the suppressor piston spring starts to bring the body of a suppressor backwards. This is a good thing, as the barrel is also wanting to move backward as part of the recoil action. The net result is that the silencer is moving on its own, so the barrel doesn’t assume the full burden of lugging the extra weight. All this fancy movement make sure that your gun cycles correctly.

The piston is the only part that attaches to your gun barrel by design. This means you can use one suppressor with multiple pistons to fit different gun barrel diameters and threading types. I ordered three different pistons for the Octane 45 so I can mount it on 9mm, .40 S&W and .45 ACP barrels. Pistons are inexpensive and not regulated like the suppressor body, so you can get them anytime.

Now let’s talk about the other scenario for a minute – a fixed barrel situation.

When the barrel doesn’t move, you don’t want to use a booster. Like the barrel, you want the silencer fixed in place. Rather than using a pistol and spring, you order a fixed mount that is rigidly attached to the silencer body without use of a spring or piston. Using a piston in a fixed barrel scenario will beat up your expensive silencer.

Make sense?

Maintenance

The SilencerCo SWR Octane is designed for easy maintenance. As you can see by the photos here, the insides are easily removed for cleaning and maintenance. The interior baffle structure is made of a series of connecting pieces that come apart when removed from the silencer body. If you want to clean the easy way, take the unit apart and dump the interior pieces into an ultrasonic cleaner like the Lyman Turbo Sonic cleaner like the one I use. Use the ultrasonic on the internals only – clean the body and end caps by hand.

All of the guts are easily removable for cleaning. That's especially important if you shoot lead bullets.

All of the guts are easily removable for cleaning. That’s especially important if you shoot lead bullets.

You won’t need to obsess about cleaning your suppressor, but if you like to shoot lead bullets, you will need to deal with that more frequently. I’ve cleaned mine once, mainly out of curiosity, and have fired somewhere north of one thousands rounds of mixed ammo through it. No worries.

Closing thoughts

The most surprising thing about adding a pistol silencer to my collection is how it changes the whole feel of shooting. The sharp bangs turn to more of a whoosh. You can hear bullets zinging through the air. Recoil feels less abrupt. Newer shooters are less likely to flinch. Depending on your ammo selection, you may be able to remove hearing protection.

All in all, use of a silencer dramatically improves your shooting experience. Bite the bullet. Pay the feds their highway robbery extortion of $200. Get one.

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