© Primary ArmsCryptic Coatings .308 Win AR-10 Bolt Carrier Group - Black Nitride
- Brand
- Cryptic Coatings
- Caliber
- .308 Win
- Category
- Gun Parts
- Platform
- AR-10
- Gun Part Type
- Upper Receiver
- MPN
- CC0206
Overview
The Cryptic Coatings .308 Win Bolt Carrier Group is a full-auto profile AR-10 BCG engineered for DPMS LR-308 pattern platforms in .308 Win and 7.62x51mm. Machined from mil-spec 8620 aircraft-quality steel and heat-treated to 60-61 RC, it features a durable black nitride finish for enhanced surface hardness, corrosion resistance, and low-friction cycling. The assembly includes a Grade 8 gas key with proper mil-spec staking to maintain a secure gas seal under sustained rapid fire, a shrouded and chromed firing pin design to prevent carbon buildup, and a total weight of 17.8 oz.
Price & Stock History
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