LanTac 556 Enhanced BCG TIN – AR-15/M16 5.56/.223

The LanTac 556 Enhanced Bolt Carrier Group replaces your AR-15's factory BCG with a precision-machined upgrade built for reliability under sustained fire. This enhanced carrier group features advanced machining to reduce friction points and optimize bolt cam path geometry, extending component life and improving cycling consistency. Ideal for shooters who demand dependable performance in competition, training, or duty applications.

Manufactured from 8620 steel carrier and 9310 steel bolt, this BCG receives a Titanium Nitride (TIN) coating for exceptional hardness and lubricity. The gold-toned TIN finish provides superior wear resistance and simplified cleaning compared to standard phosphate treatments. Chrome-lined gas key is properly staked per mil-spec. Installation is drop-in for any mil-spec AR-15 or M16 pattern rifle chambered in 5.56 NATO or .223 Remington.

• Part Type: Complete Bolt Carrier Group
• Compatible Firearms: AR-15, M16 (5.56 NATO, .223 Remington)
• Carrier Material: 8620 Steel
• Bolt Material: 9310 Steel
• Finish: Titanium Nitride (TIN)
• Gas Key: Chrome-lined, staked
• Installation: Drop-In
• Includes: Bolt, carrier, cam pin, firing pin, retaining pin