This Premium 9mm Bolt Carrier Assembly is compatible with all GLOCK style AR builds. Maintaining a harder core than standard 8620 steel, this carrier is machined from 8620H. OD …

This Premium 9mm Bolt Carrier Assembly is compatible with all 9MM Pistol Caliber AR builds. Maintaining a harder core than standard 8620 steel, this carrier is machined from hardened Premium 4340 Steel. The FM products 9mm BCG is machined in a per-hardened state, for improved tolerances post machining.

Feature rich, high-quality, and affordable, Foxtrot Mike Products offer cutting edge solutions utilizing the highest quality materials and manufacturing processes available. This Premium 9mm Bolt Carrier Assembly is compatible with all GLOCK style AR builds. Maintaining a harder core than standard 8620 steel, this carrier is machined from 8620H.

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The Foxtrot Mike Premium 9mm BCG features 8620H steel, nitride finish, and top-tier machining for Glock-style AR builds. Durable, reliable, and USA-made.

Each kit contains a complete Premium FM9 Bolt Carrier Group BCG, .308 Carbine Recoil Spring and a Heavy Buffer to ensure proper function on your 9MM Glock Style P.C.C. Build.

OD 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. Note: This BCG is not compatible with side charging receivers. Features: 8620H rated steel Salt bath nitride finish

Features: - 8620H rated steel - Salt bath nitride finish - Ramped to accommodate both MIL-SPEC and 9mm hammers - Premium 17-4 stainless steel firing pin - Forged, precision machined extractor - M16 profile - Manufactured with ISO:9001 and AS:9100 quality certifications - Cotter pin firing pin retainer - One piece design - Made in the U.S.A ...

The Foxtrot Mike Products FM-9 Bolt / Carrier Group fits 9MM AR style pistols and carbines that use lowers designed for Glock style magazines only. Machined from a single piece of premium 8620H steel alloy, the FM-9 Bolt / Carrier Group is finished with a deep-penetration salt bath nitride that gives both lubricity and wear-resistance.