Wilson Combat 5.56 NATO Low Mass AR-15 Bolt Carrier Group - Polished Nickel Boron

The Wilson Combat 5.56 NATO Low Mass Bolt Carrier Assembly offers improved recoil control for faster follow-up shots ideal for competition and sport shooting. The Low Mass Bolt Carrier includes a bolt machined from aerospace-grade 9310 tool steel. It is MPI, HPT, and shot-peened for improved strength and has a tool steel extractor, ejector, extractor spring. The 8620 steel carrier includes a mil-spec, nickel boron plated gas key that's machined for smooth operation and easy cleanup. Secured to the carrier with Grade 8 fasteners, the gas key is properly staked during the final inspection. With a polished nickel boron finish, this AR BCG outperforms hard chrome and nickel-phosphorous in hardness and wear resistance. It is easy to clean, withstands high temperatures, and requires less lubrication with a low coefficient of friction. 

Features:

• Manufactured by Wilson Combat
• Polished nickel boron finish
• 5.56/.223
• AR 15 Low Mass Carrier 
• RCA gas key staked
• 8620 steel carrier
• 9310 tool steel bolt, MPI inspected
• 4140 extractor
• Mil-Spec parts
• Weighs 9.08 oz.