Alex Pro Firearms M16 Bolt Carrier Group 5.56x45mm/300 Blk Black Nitride

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