Function issue:  Around the third spherical I get a light hammer strike.  I have experimented with each H2 and H3 buffer weights.  H2 I was only finding one shot, H3 I now get two photographs off.  I've tried this on two uppers, a person carbine and a person pistol, but utilizing the identical BCG.  I ordered an aimsurplus NiB BCG, I'm going t