AR-15 New Frontier Armory, Criterion Barrel, Wilson Combat BCG Testing!
Forgot to mention in the video that the Criterion Hybrid 18" barrel had a rifle length gas system. After about 10 rounds there were no more hold open on the last round issues and the rifle performed flawlessly! Not my best performance at 50 yards today! Not the barrel or scope and most likely not an ammunition issue. The usual weak link! That would be me! Lol!