Good product but... - Armaspec AR9 Gen3 Sound Mitigation Buffer Kit

I bought this to lesson my recoil . I does that only marginally. I like the idea and the build. Since i have only put less than 200 rounds through it on a new fresh built ar9, I'm going to give it and the gun a brake in period first. Out of the rounds i shot I had only one stove pipe and many failures to lock open on the last round.