AR-15 5.56 Complete Bolt Carrier Group is designed to work easily and reliably in any AR-15 or M16 rifle chambered in 5.56x45mm 300 AAC Blackout or .223 Remington.
The APF M16 5.56 Complete Bolt Carrier Group is constructed with a bolt made from 9310 steel which is finished with a heat treatment and shot peening. The carrier is fabricated from 8620 hardened steel. Each element of the bolt-carrier group is finished in a black-nitride coating.
Features:
- Magnetic-particle inspected material
- Extractor includes spring and rubber insert
- Functions with any cartridge based on the 5.56 NATO cartridge case
- Machined to Mil-Spec Standards
- Properly Staked Gas Key
- Complete Bolt Carrier Assembly Drop-In Ready
- Black Nitride Finish
