The Fail Zero assembled bolt carrier group is configured for AR-15 platforms chambered in 7.62x39mm and ships ready for drop-in installation into most mil-spec uppers. Critical components receive EXO Nickel Boron treatment to provide permanent dry lubricity, improved wear resistance, and easier cleaning after use with corrosive ammunition. The assembly includes an M16-cut carrier, cam pin, carrier key, and extractor hardware designed to improve extraction tension. A Black Rifle Arms enhanced firing pin is included to address ignition issues with some hard-seated primers.
Key Specifications
- Compatible with 7.62x39mm mil-spec upper receivers.
- Critical parts feature EXO Nickel Boron treatment for dry lubricity and corrosion resistance.
- Constructed from Steel.
- Ships fully assembled for drop-in installation.
- Includes an M16 cut bolt carrier with cam pin and carrier key.
- Extractor hardware uses a heavy spring silicone insert and o-ring for improved extraction tension.
- Equipped with a Black Rifle Arms Enhanced Firing Pin to help with difficult primers.
- Finish style listed as 7.62X39MM/CLASSIC FINISH.
- Listed overall dimensions: 1.60 x 3.80 x 10.30.
Purpose-built for shooters who value reliable, low-maintenance components, this assembled BCG simplifies upgrades and repairs for 7.62x39mm AR-15 rifles. The combination of coated contact surfaces and enhanced extractor hardware reduces cleaning frequency and supports consistent function in range and field use. Add this BCG to a build or upgrade when you need a durable, drop-in replacement that prioritizes dependable operation and straightforward maintenance.
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