Operate situation: On the 3rd round I get a light hammer strike. I have tried the two H2 and H3 buffer weights. H2 I used to be only receiving just one shot, H3 I now get two shots off. I have tried out this on two uppers, a person carbine https://frt-for-sale66552.nizarblog.com/37291227/a-simple-key-for-rare-breed-triggers-unveiled