WILSON COMBAT Bolt Carrier Assembly 5.56x45mm Blk Full Auto

Wilson Combat Bolt Carrier Assembly for AR-15 rifles in 5.56x45mm. Precision machined from Carpenter 158 steel and shot peened for strength. Includes tool steel extractor and ejector, extractor spring, and High Pressure Tested components. 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, which can benefit carbine length and shorter gas systems, suppressed rifles, and machine guns. The semi-auto carrier is lighter to reduce recoil for longer gas systems, and its design makes reinstalling the firing pin easier after cleaning. Both carrier types are interchangeable. - Type: Bolt Carrier Group - Model: Bolt Carrier Assembly - Size: 5.56mm - Material: Steel - Finish: Black Parkerized - Bolt Type: Full Auto