Foxtrot Mike Products offers the highest quality materials and manufacturing processes available. This Premium 45 Cal Bolt Carrier Assembly is compatible with all 45 Cal 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 per-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. Specifications for FM Products Glock Style .45 AR Bolt Carrier Assembly: Manufacturer: FM Products Color: Black Finish: Salt bath Nitride Melonite/QPQ Fabric/Material: Premium 4340 Steel Cartridge: .45 ACP Gun Make: AR Platform Gun Model: AR-15 Condition: New Features of FM Products Glock Style .45 AR Bolt Carrier Assembly Premium 4340 Steel Bolt Carrier, machined pre hardened; S7 Tool Steel Extractor and firing pin; S7 Firing Pin coated in Nickel Boron; 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 and 9mm hammers; Forged, then precision machined extractor made from S7 tool steel; M16 profile; Manufactured with ISO:9001 and AS:9100 quality certifications; Premium one piece design, much stronger than 2 piece BCG on the market; Extractor spring and Hardware made to Colt Spec Package Contents: FM Products Glock Style .45 AR Bolt Carrier Assembly
RuckTruck –
The fit and finsh is very nice and works great. You will need to check the extractor roll pin and file it down if necessary. The pin protrudes as it cannot come out on the other side due to the gas key carrier which is a solid piece for blow back design. Just file it down and your set.
Jumb –
Extractor roll pin backed out In less than 50rnds… Caused feeding issues and chewed up my magazines feed lips. Was able to tap it back in but it was deformed from dragging on the magazine… Filed it down. Will test it again soon.