AERO PRECISION AR-15 5.56 BCG Nickel Boron

Our upgraded nickel boron bolt carrier group is an eye catching addition to your AR build. Mil-spec dimensions and coating ensure the highest quality and correct component interface. Features: No Aero 'A' Logo M16-cut carrier Carrier has forward assist serrations Shrouded firing pin Nickel Boron Coating inside and out (Bolt, Carrier, and Gas Key) Forged Mil-Spec gas key attached with Grade 8 hardware and Properly staked Mil-Spec Extractor Spring, black extractor insert, Viton O-Ring Shot peened HPT tested/MPI marked Tool Steel Extractor High quality AR-15 BCG Weight: 11.52 oz Carrier Material: 8620 Steel Bolt Material: 9310 SteelMADE IN THE USA