It will get a 3 round burst then bit strip another round I have a h3 buffer I was told abiut the quarter trick but I think that’s what’s causing the short stroke too not pick up another round but the quarter also solved the boilt getting stuck back so I was told too file my lever and I am in the process of doing so any recommendations??,also changing mags too see if that’s the issue running pro mags 20 rounders ikik yeah yeah yeah