The first thing you notice about the Gemtech GM-22 is its amazingly light weight. While the GM-22 is approximately the same size as other .22 rimfire suppressors on the market, the all aluminum construction shaves a lot of weight from the package.
I recently got my hands on one to check out thanks to our friends at Silencer Shop. Let’s take a closer look.
The GM-22 is a two-piece suppressor – the exterior tube housing and the monolithic baffle stack. As a result, disassembly and reassembly couldn’t be simpler – just unscrew the baffle stack from the tube and slide it out. The direct thread mount is part of the baffle stack and uses standard (for most rimfire applications) 1/2×28 tpi threading.
The overall length is five-inches, and diameter of the tube is one-inch. The overall weight is just 2.5 ounces, which makes the GM-22 an especially good solution for .22 pistols. The light weight has minimal impact on the overall feel and balance of a handgun. The entire unit is made from 7075 aluminum. The exterior tube is finished with matte black Cerakote, which apparently helps to reduce the infrared heat signature in case you’re trying to be all ninja-like.
The GM-22 is rated for .22 LR, .22 WMR, and .17 HMR. It’s not certified for the higher pressure .17 WSM cartridge, so be aware of that. For .22 LR, it is good to go for fully automatic operation. According to Gemtech, this suppressor will lower noise at the muzzle by 36-39 decibels.