5.56/.223 BCG Milspec Bolt Carrier Group
group (full auto version) for your AR15, M16, or M4. Phosphate treated and
chrome lined inside carrier. This
M16/M4 carrier includes the proper Mil-Spec gas key. Gas key is chrome
lined and heat treated per USGI specifications. Gas key is secured to
carrier via USGI domestic mfg Grade 8 fasteners and properly staked per
Mil-Specs. These properly hardened parts insure a strong staking and
proper gas system functioning.
The bolt assembly is machined from Carpenter 158 steel for increased strength, includes 4140 Carbon steel
machined extractor and ejector, extractor spring.
- Carpenter 158 steel bolt
- 8620 Carrier
- Chrome Lined Carrier (AUTO)
- Chrome Lined Gas Key
- Gas Key Hardened to USGI Specifications
- Grade 8 Hardened Fasteners
- Key Staked Per Mil-Spec
- 4140 Carbon Steel Extractor
- Extractor Spring
- Extractor Insert
- Phosphate treated
- USE FOR THE FOLLOWING CHAMBER/AMMUNITION 5.56 NATO, .223 REMINGTON, .223 WYLDE, 300 BLACKOUT AND 204 RUGER
Written by Bureau of Alcohol, Tobacco, Firearms and Explosives (BATFE), Chief of the Firearms Technology Branch
...M16 bolt carriers are not designed and intended solely and exclusively for use in converting a weapon into a machinegun and are not any combination of parts from which a machinegun can be assembled. Further, an M16 bolt carrier is not
a firearm as defined in the GCA or a machinegun as defined in the NFA.
An M16 bolt carrier is simply a machinegun part and as such its
domestic sale and possession is unregulated under the Federal firearms laws. It is not unlawful to utilize a M16 machinegun bolt carrier in a semiautomatic AR15 type rifle.