LMT Defense Semi-Auto 7.62x51 NATO BCG Features Constructed from high-strength steel this semi-auto bolt carrier group is machined to exact tolerances for exceptional reliability and performance. The chrome-plated finish provides enhanced lubricity corrosion resistance and easier cleaning ensuring consistent operation even in extreme conditions. The LMT 7.62 BCG features a properly staked gas key ensuring secure fitment and preventing gas leakage while the shot-peened and MPI-inspected bolt guarantees long-lasting strength and durability. This semi-auto carrier is optimized for smooth cycling and reduced recoil impulse making it ideal for precision and tactical use. LMT Defense Semi-Auto 7.62x51 NATO BCG Specifications Caliber: 7.62x51 NATO (.308) Carrier Type: Semi-Auto Bolt Material: High-Strength Steel (MPI & Shot-Peened) Coating: Chrome-Plated for Corrosion Resistance & Lubricity Gas Key: Properly Staked Compatibility: AR-10 / LMT MWS Platforms