Rock River Arms AR-15 bolt carrier group for .223 Remington and 5.56mm, built with an 8620 steel carrier and a chrome lined bore. The carrier is phosphate coated for corrosion resistance, while the bolt and gas key use 158 Carpenter steel. This configuration includes full auto cuts for compatibility with full auto pattern components.
Key Features
Phosphate coated carrier for improved corrosion resistance
Chrome lined bore inside the carrier for enhanced wear resistance
8620 steel carrier for strength and durability
158 Carpenter steel bolt and gas key for reliable performance
Full auto cuts for compatibility with full auto pattern receiver extensions and components
Upgrade or replace your AR-15 bolt carrier group with a Rock River Arms .223/5.56 unit engineered for long service life.
