This complete bolt carrier group ships fully assembled and is designed to drop into most mil-spec M16, M4, and AR-15 upper receivers. Critical components are treated with EXO Nickel Boron to provide permanent dry lubricity, increased wear resistance, and improved corrosion protection. The bolt and extractor are listed as compatible with 5.56/.223, and the carrier is supplied as a full-auto compatible unit for appropriate platforms.
Key Specifications
- The product is a complete Bolt Carrier Group suitable for AR-15 style platforms.
- Compatibility is listed as mil-spec M16, M4, and AR-15 upper receivers.
- The bolt and extractor are compatible with 5.56/.223.
- The finish on critical parts is EXO Nickel Boron for dry lubricity and corrosion resistance.
- The primary construction material is steel.
- Treated components include the Bolt, Extractor, Bolt Carrier, Cam Pin, Carrier Key, and Firing Pin.
- Listed other feature: Full-Auto BCG.
- The overall package dimensions are approximately 1.75 x 3.80 x 10.65 inches.
- Designed as an AR-15 accessory and intended for drop-in installation in compatible uppers.
Engineered for straightforward installation and long-term service, the Fail Zero FZ M16 Bolt Carrier Group offers a maintenance-friendly upgrade for shooters who prioritize reliable, low-friction operation at the range, in service, or during precision maintenance cycles. Its EXO Nickel Boron treatment reduces the need for frequent lubrication while enhancing wear and corrosion resistance, making it a practical choice for users seeking consistent performance from a fully assembled BCG.
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