Better than expected - OpticsPlanet Exclusive Maxim Defense Industries RDB Roller Delayed Blowback System

I purchased this in a recommendation of a fellow competitor. My only PCC experience was with direct blow back. I've shot others delayed guns, but didn't want to spend the $$ on a completely new system. Aside from the initial resistance when pulling the charging handle, this buffer is amazing. There's still recoil, but it is completely manageable. The dot does not move. My only regret is not switching sooner. You will need a bolt carrier that has a hollow rear as this buffer system is captured.