Description:

Nickel Boron auto carrier for the AR-15. This carrier is compatible with a variety of calibers, including 5.56MM, .223, 300 AAC Blackout, 6.8 SPCII, 6.5G, 7.62x39 and 5.45x39. High quality mil-spec+ with properly staked gas key. 8620 steel carrier. A pristine and reliable carrier for your AR-15 rifle!

Advantages of Nickel Boron:

• Harder surface results in less wear
• Reduced Friction
• Reduced Heat
• Operates with little to no lubricant
• Easy to Clean