Made in the USA. Our bolt carrier group is manufactured using Mil-spec carpenter 158 steel, HP tested, and MPI tested. The gas key is chrome lined phosphate coated, machined from bar stock then secured with 8 fasteners. BCG is chrome lined inside and phosphated outside. Works with .223, 5.56, 300 Blackout upper assemblies.
Steel: Carpenter No. 158 steel bolt
Profile: Full Auto
Carrier: Chrome Lined inside, Phosphated Outside
Gas Key: Chrome Lined, Phosphated Outside
Gas Key: Hardened to USGI Specifications
Gas Key: Mil-spec Staked
Extractor: Tool Steel Extractor and Extractor Spring
Please Note: Bolt Carrier Group will be packaged dry, lubricate BCG before use.
Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or “assault weapons” (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily
80-Lower.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.