Wilson Combat .223/5.56/300 BLK M16 Profile Bolt Carrier Group Polished NiB - TR-BCA-PNIB

Wilson Combat .223/5.56/300 BLK M16 Profile Bolt Carrier Group Polished NiB

Manufactured by our finest domestic Mil-Spec contractors, these are among the best AR rifle bolts on the market, and the same bolt carrier groups we use as the basis for our renowned custom rifles!

The bolt is precision machined from aerospace-grade 9310 tool steel, shot peened for increased strength, and includes a tool steel extractor and ejector, an appropriate extractor spring, and is MPI (Magnetic Particle Inspected) and randomly batch HPT (High Pressure Tested).

The extractor is 4140 gun quality, annealed, cold-drawn steel per the Mil-Spec.

With a complete Black Nitride finish, the 8620 steel carrier includes a properly machined Mil-Spec gas key secured with Grade 8 fasteners and staked in our shop during final inspection.

The super hard Black Nitride Finish is an advanced, low-friction surface treatment that minimizes the need for excessive lubrication and cleaning, looks like new for years, and never peels, flakes, or chips.

These precisely machined, finished, and hardened parts will ensure long-term proper functioning and reliability of the gas system.

All experienced AR shooters know that the best spare parts kit for an AR-15 rifle is a spare complete bolt carrier assembly!

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, which 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 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.

Features

• Bolt material is aerospace-grade 9310 MPI inspected
• Mil-Spec parts ensure a long service life
• Machined ejector and extractor per mil-spec
• 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,300 HAM’R, or 7.62X40 WT)
• Also Available Finish: Polished NiB