Misc Chatter, Muzzle breaks on SBRs, AR Mags, Height over bore, MGI Hydra

Last weekend I was shooting M855 out of a 8 inch barrel with a muzzle break.  Each shot I saw a muzzle flash that extended past my peripheral vision.   Recently I saw a video where someone was doing rifle pushups with an AR15.  I was going to reference that video in this comment, but … Read moreMisc Chatter, Muzzle breaks on SBRs, AR Mags, Height over bore, MGI Hydra