Note: This BCG is not compatible with side charging receivers. 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 ...

The FM Products Premium 9mm AR-15 bolt Carrier Group is a high quality Glock-style AR BCG, now at Primary Arms.

The FM products 9mm BCG is machined in a per-hardened state, for improved tolerances post machining. A long duration salt bath nitride finish is applied for a long service life and superior corrosion resistance.

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.

Building a reliable 9mm AR when using Foxtrot Mike Products. The FM Products FM9 9mm complete lower receiver is machined from a block of billet 7075-T6 aluminum and is compatible with Mil-Spec components.

Find your Rifle Bolts & Bolt Carrier Groups Products at Brownells with 4.4 Ratings out of 680 Reviews from verified buyers and Up To 85% Off from Top Brands including BROWNELLS, J P ENTERPRISES, & KAK INDUSTRY LLC..

Build a better, more reliable firearm using this FM Products 9mm Premium Bolt Carrier Group BCG Assembly. FM Products constructed these Bolt Carrier Groups from 4140 steel with a 17-4 stainless steel firing pin for maximum durability.

This is a complete assembly, with firing pin and extractor installed, and ready to go into your pistol caliber carbine build. • “Ramped” to accommodate both standard GI and dedicated 9mm …

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.