Description
This assembled bolt carrier group is built for AR10-pattern uppers and specified for .308 Winchester. Critical components receive Fail Zero’s EXO Nickel Boron treatment to provide dry lubricity, increased wear resistance, and corrosion protection. The carrier ships with a black exterior topcoat while the treated contact areas feature the Nickel Boron finish, and the unit is DPMS-pattern compatible for drop-in installation in most mil-spec AR10 upper receivers.
The carrier includes a black topcoat over the EXO Nickel Boron treatment; wear areas such as ramps, rails, and carrier ends may show the Nickel Boron beneath over time, while non-wear exterior areas typically retain the black overcoat.
Nickel Boron treated parts include the bolt and extractor (.308 compatible), bolt carrier, extractor, cam pin, carrier key, and firing pin.
Key Specifications
- Caliber: .308 Winchester.
- Pattern compatibility: DPMS (AR10).
- Finish: Black topcoat over EXO Nickel Boron.
- Material: Steel.
- Compatibility: Drop-in for most mil-spec AR10 upper receivers.
- Treated components: Bolt, Extractor, Cam Pin, Carrier Key, Firing Pin, Bolt Carrier.
- Dimensions: 1.50 x 4.15 x 13.05 inches (overall).
- Product type: Bolt Carrier Group.
Engineered to reduce friction and offer durable service, this Fail Zero AR10 BCG provides reliable operation for range use, field applications, and precision builds. Its treated components and drop-in compatibility make it a practical, low-maintenance option for .308-compatible AR10 platforms.






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