Monolithic AR-15 Mike-9 8.5 Colt Style Upper Receiver 9mm Black

Styled after the Colt-pattern pistol-caliber carbine, the Foxtrot Mike Products AR-15 FM-9 Monolithic 9mm Upper Receiver offers AR aficionados with the opportunity to put together a pistol-caliber carbine for their next build. The Mike-9 Monolithic 9mm Upper Receiver can be had in three different barrel lengths, so whether you're building a pistol or a carbine, there's a setup that's perfect for your build. Each complete upper is built from 6061-T6 aluminum and includes a proprietary charging-handle design that's non-reciprocating. Though designed to work with lower receiver that utilize Colt SMG magazines, these uppers are also compatible with GlockA(R) magazine Mfg: Foxtrot Mike Products