The LBE Unlimited AR15 / M16 Complete Nickel Boron Bolt Carrier Group is a fully assembled, drop-in ready BCG engineered for smooth operation and easy maintenance in .223/5.56 AR-15 platforms. Finished with a premium Nickel Boron (NiB) coating, this BCG offers exceptional lubricity, reduced carbon buildup, and superior corrosion resistance while delivering reliable performance for both semi-auto and full-auto (M16 profile) use.
Built with a heat-treated 8620 steel carrier and Carpenter 158 bolt, it comes complete with staked gas key, firing pin, cam pin, extractor, and gas rings for hassle-free installation.
Built with a heat-treated 8620 steel carrier and Carpenter 158 bolt, it comes complete with staked gas key, firing pin, cam pin, extractor, and gas rings for hassle-free installation.
Features
- Premium Nickel Boron (NiB) finish for ultra-smooth cycling and easy cleaning
- 8620 steel carrier with M16 full-auto profile
- Carpenter 158 bolt for maximum strength and durability
- Staked gas key for enhanced security under heavy use
- Chrome-lined carrier interior for reduced friction
- Fully assembled with firing pin, cam pin, extractor, and gas rings
- Drop-in ready
- 100% Made in the USA
