NBS Nickel Boron Bolt Carrier Group 308 Winchester AR-10

The NBS Nickel Boron Bolt Carrier Group is a great option for your next LR-308. Machined to strict mil-spec tolerances, this bolt carrier group is drop-in ready. The Nickel Boron finish provides enhanced reliability and is more resistant to wear. With a 308 Winchester bolt face, this Bolt Carrier Group is ideal for your next LR-308 Marksman Rifle. This .308/7.62 Nickel Boron BCG features an 8620 Tool Steel Carrier and 9310 Carpenter Steel Bolt, with a properly staked forged gas key and Grade 8 Hardware. The bolt is shot peened and hardened then Magnetic Particle Inspected. Features 308 Winchester Bolt Face Properly Staked Gas Key Drop-In Ready Nickel Boron Finish Made in the USA Backed by the NBS Lifetime Warranty