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Sep 13, 2019 · First, let's break up a myth: Installing an M16 or "full-auto" BCG in your AR-15 won't transform it into an automatic rifle (which would be incredibly illegal, anyway). Transforming a semiautomatic AR-15 into a fully-automatic rifle would require swapping out the trigger, disconnector, hammer, and safety selector lever.
Jul 30, 2023 · The process of converting your AR-15 into a fully automatic machine gun involves several steps: Remove fire control group and selector switch. Install M16 Fire Control Group into lower receiver. Modify bolt carrier group by adding additional cuts for auto sear engagement. Work on disconnector/sear disconnect spring.
AR-15 vs. M16 BCGs. M16 style configurations have more material toward the rear of the carrier, called a full auto lug. This additional material is necessary for the full auto sear to function. Due to the extra material, M16 bolt carrier groups have an increased weight. AR-15 style configurations have a cutout on the bottom of the carrier.
Aug 3, 2023 · Key Differences. Full Auto Lug: The main difference lies in the presence of a full auto lug in the M16 BCG. This lug contacts the sear release in full auto trigger groups, allowing the gun to fire in fully automatic mode. The AR-15 BCG does not have this lug. Weight: The absence of the full auto lug in the AR-15 BCG results in a lighter weight.
May 1, 2024 · The bolt carrier group is a vital component of any firearm, and this holds true for the AR-15 as well. With an automatic bolt carrier group installed in your rifle, you can convert it into a fully automatic weapon that fires rounds rapidly with just one pull of the trigger.
Bolt Carrier Group FAQs & Summary. The AR-15 and M16 BCG are interchangeable with any standard rifle. Using an M16 BCG will not make a semiautomatic rifle fully automatic. Owning and and using an M16 BCG is perfectly legal. It is not a machinegun part. For the average shooter, any type of steel (8620, 9310, or No. 158) and coating will suffice.
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Are M16 BCGS required for a fully automatic AR-15?
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How do I convert my AR-15 into a fully automatic machine gun?
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Is it legal to use a BCG in an AR-15?
Can you build an AR-15 from an 80% lower?
Oct 11, 2024 · M16 Full-Auto BCG: Although designed for full-auto use, these BCGs are legal in semi-automatic rifles and are often preferred for their added mass, which can help the rifle cycle more smoothly. AR-15 Semi-Auto BCG: Lighter than M16 BCGs, these are made for semi-automatic rifles and perform well for standard applications.
