BOLT CARRIER ASSEMBLY, AR-15/M16, 5.56 NATO, AUTO, MIL-SPEC, POLISHED NICKEL BORON

Experience optimal reliability and performance in your rifle when you choose the Wilson Combat Bolt Carrier Assembly for your 5.56 NATO rifle. This robust solution ensures rugged dependability, no matter the conditions. This bolt carrier assembly features a polished nickel boron coating and is precision machined from aerospace-grade 9310 tool steel, making it incredibly tough. The hardened steel 8620 carrier also features forward assist cuts for added reliability. Additionally, the gas key is properly staked to ensure it won't fail at the most inopportune moment. This bolt carrier assembly is used in Wilson's fully-built rifles and will provide unbeatable performance and durability for any shooter who needs dependability they can trust.

• Drop in fit for any quality 5.56 case head based AR rifle (.223/5.56 NATO, .300 Blackout, .204 Ruger, 300 HAM’R or 7.62X40 WT)
• Polished nickel boron coating provides easy clean up and corrosion protection 
• Precision machined from aerospace-grade 9310 tool steel for toughness
• Hardened steel 8620 carrier features forward assist cuts 
• Properly staked gas key ensures reliable performance 
• Machined ejector and extractor
• Used in Wilson's fully-built rifles for optimal performance and durability

NOTE: The only difference between “semi-auto” and “full-auto” carriers are the carrier weight and external profile. The “full-auto” carrier is slightly heavier to provide more mass and lower cyclic rate that can benefit carbine length and shorter gas systems, short barreled/suppressed rifles and machine guns. The “semi-auto” carrier is slightly lighter to provide the least amount of recoil impulse for rifle length gas systems and it's design makes reinstalling the firing pin easier after cleaning.