Colt’s Manufacturing Bolt Carrier Group, .223/5.56


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SKU: SP64028

Product Description

Complete, mil-spec assembly with bolt, bolt carrier, and firing pin ready to drop into the rifle or carbine upper of your choice. Each bolt assembly is high pressure tested and magnetic particle inspection tested to ensure it’s free from imperfections that can lead to premature failures. Properly staked gas key prevents gas leakage that can lead to short stroking. M16-style carrier on the black phosphate model has full-length shroud for tripping auto sear, so this carrier may be installed on full-auto law enforcement and military rifles. Carrier and gas key are chrome lined for smooth cycling and resistance to wear from hot combustion gases for years of dependable service.


  • Steel, black parkerized finish.
  • Fits mil-spec semi-auto and full-auto AR-15/M16 upper receiver chambered for 5.56/.223/.300 BLK
  • M16 profile
  • Full auto rated
  • High pressure tested
  • Magnetic particle inspected
  • Staked gas key with chrome lined internals




Technical Information

Color / Pattern
Caliber 5.56 NATO / .223 Remington , .300 AAC Blackout
Firearm Compatibility

Catalog Location

California Prop 65 Warning

WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information visit