mike j
Member
Just got my first can and and shot it on my blackout the other night at the range. I didn't expect it to have a problem but it doesn't like to lock the bolt back after the last round, it only did once out of 20 rounds (200gr sub). My set up is 16" barrel standard carbine buffer and spring but with a carbine gas length. I know now its preferred to have a pistol length with subs, but I thought shooting suppressed I wouldn't have this problem. Where to start, gas system or buffer/spring?