If I had to wager, I’d wager at least 10% of the 1911s I’ve worked on over the decades have had safety issues. Some were even new guns. If I just think about well-used 1911s, I’m betting the percentage is more like 15% or even 20% — especially gun show “parts” gun amateurs often assemble. Not long ago a friend brought me a foreign 1911 (an Argentinian “Sistema” Colt clone) saying it needed some work. No fooling.