Brownells 75th Anniversary - A Shooting Heritage

Feature rich, high-quality, and affordable, Foxtrot Mike Products offer cutting edge solutions utilizing the highest quality materials and manufacturing processes available.
This Premium 45 caliber Bolt Carrier Assembly is compatible with all 45 caliber Glock style Pistol Caliber AR builds. Maintaining a harder core than standard 8620 steel, this carrier is machined from Premium 4340 Steel. The outside diameter is precision ground prior to machining in a pre-hardened state for improved tolerances post machining and coating. A long duration salt bath nitride finish is applied for a long service life and superior corrosion resistance.


  • Premium 4340 Steel Bolt Carrier
  • Long duration, deep penetration Salt bath Nitride Melonite/QPQ finish gives lubricity and wear-resistance
  • Removable weight, compatible with all PDW stocks and Captured Recoil Systems on the market
  • Ramped to accommodate both MIL-SPEC hammers
  • Premium 17-4 stainless steel firing pin
  • Forged, then precision machined extractor made from S7 tool steel
  • M16 profile
  • Forward assist serrations
  • Manufactured with ISO:9001 and AS:9100 quality certifications
  • M67 firing pin retainer, made out of 17-4 Stainless Steel
  • Premium one piece design, much stronger than 2 piece BCG on the market
  • Made in the U.S.A.
  • Extractor spring and Hardware made to Colt Spec

Big Book Catalog, Issue:72, Page:018

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Cartridge: 45 Auto (ACP)

Finish: Nitride