AR-15 BOLT CARRIER GROUP

The LMT AR-15 5.56mm Semi-Auto Bolt Carrier Group is a complete drop-in replacement BCG built to mil-spec standards in LMT's Milford, New Hampshire facility. Machined from Carpenter 158 steel and shot-peened, the bolt is high-pressure tested (HPT) and magnetic-particle inspected (MPI) to ensure long-term reliability under sustained fire. The carrier is finished in mil-spec manganese phosphate for corrosion resistance and reliable wear characteristics. This is the same BCG specification LMT supplies on its complete rifles, so drop-in fit and finish parity are guaranteed.

Key Features:

• SKU-specific configuration listed as: AR-15 BOLT CARRIER GROUP
• Carpenter 158 steel bolt shot-peened
• HPT (high-pressure tested) and MPI (magnetic-particle inspected)
• Mil-spec manganese phosphate finish
• Properly staked gas key
• Semi-automatic carrier configuration
• 5.56mm chambering
• Made in the USA at LMT Milford, NH
• Best suited for upgrades and builds where fitment with the host firearm is confirmed