Product Description The FailZero 7.62x39 Bolt Carrier Group (BCG) comes fully assembled and is ready to drop into most mil-spec upper receivers chambered in 7.62x39. All critical components are treated with FailZero EXO Nickel Boron technology to deliver permanent dry lubricity, extreme durability, and increased wear and corrosion resistance for smoother cycling and easier cleaning. Product Highlights Fully assembled 7.62x39 bolt carrier group for fast, drop-in installation EXO Nickel Boron coating provides permanent dry lubricity and reduced friction Enhanced wear resistance and corrosion resistance for long service life Designed for use in most mil-spec 7.62x39 upper receivers No hammer included (as specified by manufacturer) Specs Brand: FailZero Product Type: Bolt Carrier Group (BCG) Caliber: 7.62x39 Finish/Coating: EXO Nickel Boron Assembly: Fully assembled Hammer Included: No UPC: 094922034960 Manufacturer Part Number: FZ-7.62X39-01-NH Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the products manufacturer.