Ar-15 9mm Bolt Carrier Group For Glock(TM) And Colt - Ar-15 9mm Complete Bolt Fde

The entire Faxon Firearms 9mm AR-15 Full-Mass Bolt / Carrier Group is machined from a single billet of mil-spec 8620 carbon steel. Even the integral gas "key" is machined as part of the carrier - no fasteners to worry about working loose. Faxon also designed the 9mm AR-15 Full-Mass Bolt / Carrier Group to be compatible with lower receivers that use Colt-style stick mags and those configured for GlockA(R) pistol mags. It also has the correct shroud length to trip the auto sear on full-auto rifles; has no impact on function of semi-autos. Fully heat-treated for hardness & wear-resistance QPQ salt-bath Nitride coated for lubricity and corrosion resistance E Mfg: Faxon Firearms