AR15 BOLT CARRIER GROUP MILSPEC M16 BLACK NITRIDE
Black nitride, also called melonite, is a durable metal treatment that is highly resistant to wear, easy to clean, and it will not flake.
AR15 Complete Bolt Assembly, Brand New • AR-15 Complete Bolt and Carrier • Military Spec • Bolt, Bolt Carrier and Firing Pin Ready to Drop Into the Rifle or Carbine Upper of your Choice • Staked Gas Key prevents Gas Leakage that leads to Short Stroking • Steel, Black Nitride Finish. Fits AR-15 Upper Receiver Chambered for .223/5.56mm or 300 AAC Blackout.
This item cannot be shipped to California, Massachusetts, New York, Washington D.C.
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.