Wilson Combat Bolt Carrier Group for AR-15 5.56 NATO – Carpenter 158 Steel, Black (TR-BCA)

• Wilson Combat bolt carrier group assembly for 223 Remington and 556 NATO AR15 rifles
• Bolt machined from Carpenter 158 steel for strength and durability
• Carrier constructed from 8620 steel with chrome lined internal surfaces
• Mil spec components ensure reliable gas system function and longevity
• Properly staked gas key with grade 8 fasteners for secure operation
• Phosphate finish provides corrosion resistance and service durability

The Wilson Combat Bolt Carrier Group Assembly 223 Remington/556NATO Black is a bolt carrier group designed for cycling and chambering operations in AR-15 rifles chambered in .223 Remington or 5.56 NATO. This assembly features a manganese phosphate exterior finish with internal chrome lining. It is intended as a drop-in component for compatible AR-15 platforms.

The Wilson Combat Bolt Carrier Group Assembly uses an 8620 steel carrier with a Carpenter 158 steel bolt and a properly staked gas key. This model fits AR-15 rifles and includes a machined extractor and ejector built to mil-spec dimensions. The carrier is phosphate finished and chrome lined internally for corrosion resistance. In standard configurations, the assembly supports consistent gas system function for range use or field applications.