The Lead & Steel LSBCGN Bolt Carrier Group 5.56 Nitride AR-15/M-16/M-4 is a complete, drop-in carrier assembly designed for dependable cycling in standard AR pattern rifles. Built from alloy steel with a black nitride surface treatment, it offers enhanced wear resistance and corrosion protection while maintaining smooth operation in the upper receiver.

This bolt carrier group is ideal for shooters building or refreshing an AR-15, M-16, or M-4 style rifle chambered in 5.56. Its nitride finish supports high round counts at the range and in training, while the robust construction makes it well suited for general-purpose use and practice-focused setups. The design reflects Lead & Steel’s attention to detail and commitment to producing reliable, well-made firearm components.

Key Features:

• Manufacturer: Lead & Steel
• Model: LSBCGN Bolt Carrier Group 5.56 Nitride AR-15/M-16/M-4
• Material: Nitride-Finished Alloy Steel Bolt And Carrier
• Weight: 8.5 Ounces
• Compatible Platforms: AR-15, M-16, And M-4 Chambered In 5.56
• Configuration: Complete Bolt Carrier Group
• Surface Treatment: Black Nitride For Wear And Corrosion Resistance