Upgrade your AR-15 with precision-engineered reliability!
Manufactured by Wilson Combat’s finest domestic Mil-Spec contractors, the AR-15 BOLT CARRIER ASSEMBLY 5.56 NATO is among the best 5.56 AR rifle bolts on the market. These are the same bolts used as the basis of Wilson Combat’s renowned custom rifles!
Key Features:
- Precision machined from Carpenter No. 158 steel
- Shot peened for increased strength
- Includes a tool steel extractor and ejector
- Appropriate extractor spring
- MPI (Magnetic Particle Inspected) and randomly batch HPT (High Pressure Tested)
- Extractor made from 4140 gun quality, annealed, cold drawn steel
- Parkerized externally and internally chrome lined
- 8620 steel carrier with a properly machined Mil-Spec gas key
- Chrome lined, phosphated, and heat treated per GI specifications
- Secured with Grade 8 fasteners, properly staked during final inspection
These precisely machined, finished and hardened parts ensure long-term proper gas system functioning and reliability. All experienced AR shooters know that the best spare parts kit for an AR-15 rifle is a spare complete bolt carrier assembly!
Additional Information:
- Parkerized finish and internally chrome lined
- Mil spec parts ensure a long service life
- Machined ejector and extractor per mil specs
- Full Auto carrier (see note)
- Drop-in fit for any quality 5.56 case head based AR rifle (.223/5.56 NATO, .300 Blackout, .204 Ruger, or 7.62X40 WT)
Note: The only difference between “semi-auto” and “full-auto” carriers is the carrier weight and external profile. The “full-auto” carrier is slightly heavier to provide more mass and a lower cyclic rate, benefiting carbine length and shorter gas systems, short barreled/suppressed rifles, and machine guns. The “semi-auto” carrier is slightly lighter, providing the least amount of recoil impulse for rifle length gas systems, and its design makes reinstalling the firing pin easier after cleaning. Both carrier types are considered completely interchangeable, and there are no restrictions on the ownership of a “full auto” carrier group in a semi-automatic rifle.