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Joe P. asked 4 years ago:
2 answers
Short video on that HERE ( https://www.youtube.com/watch?v=1_1B6ltGWCU ) I this helps!
Trin K.
4 years ago
Joe, a Full Auto Bolt Carrier Group has more mass. The difference between the two BCGs is the presence of a full auto lug. The bottom portion of the BCG has a lug that contacts the sear release in a full auto trigger groups and allows the gun to fire in fully automatic. Details with pictures here : thetruthaboutguns.com/ask-foghorn-whats-difference-between-full-auto-semi-auto-only-ar-15-bolt-carrier/
James G.
4 years ago
