Sons of Liberty Gun Works 6 ARC BCG Phosphate Black – AR-15 Platform

The Sons of Liberty Gun Works 6 ARC Bolt Carrier Group is purpose-built for the 6mm ARC cartridge in AR-15 platform rifles. Engineered with a bolt face and extractor configured specifically for 6 ARC case dimensions, this BCG delivers reliable feeding, extraction, and ejection for precision shooters running this increasingly popular long-range cartridge. Whether you're building a dedicated 6 ARC upper or converting an existing rifle, this BCG provides the proper headspacing and extraction mechanics the cartridge requires.

The carrier and bolt are machined from mil-spec 8620 steel with a traditional phosphate finish offering corrosion resistance and proven durability. The phosphate coating provides self-lubricating properties that reduce friction during cycling. This is a drop-in component for standard AR-15 lowers—no gunsmithing or fitting required. Gas key is properly staked per military specifications. Includes complete bolt carrier group ready to install.

• Part Type: Bolt Carrier Group
• Compatible Firearms: AR-15 Platform Chambered in 6mm ARC
• Material: 8620 Steel
• Finish: Phosphate Black
• Installation: Drop-In
• Includes: Complete Bolt Carrier Group