Expo Arms 5.56 AR-15 Bolt Carrier Group - Nitride

The Expo Arms 5.56 NATO Complete M16-Cut AR-15 Bolt Carrier Group is a reliable choice for any AR-15 build. This drop-in BCG features mil-spec dimensions, a magnetic particle inspected Carpenter 158 steel bolt, and a corrosion-resistant salt bath nitride finish.

Features:

• M16 cut carrier
• Chambered in .223/5.56 NATO
• Aircraft-quality 8620 steel carrier
• Carpenter 158 steel bolt, salt bath nitride finish
• 4130 steel gas key, properly staked grade 8 screws
• 4140 steel cam pin
• 8740 steel firing pin, hard chrome finish
• Mil-Spec O-ring and gas rings
• Magnetic particle inspected
• Lifetime warranty
• Made in the USA

Proudly made in the USA using domestically sourced 8620 steel, this BCG ensures long-lasting service with its lifetime warranty.

Expo Arms manufactures mil-spec AR-15 components in the United States, backed by a Limited Lifetime Warranty against manufacturer defects, material or workmanship problems, and normal wear and tear.