I shoot personally and tactically on a team; using Colt, KAC, LMT, Noveske products. Semi-auto you can use what you want. If you shoot Full Auto, you have to have this BCG. It makes all the difference, in knowing your weapon is running 100% of the time, like a fine machine. I've used it enough to be confident in the 100% reliability, which is my personal benchmark for my weapons. It's a fantastic product: smooth and reliable.
Reviewed by: Dave Hess from Utah.