Styled after the Colt-pattern pistol-caliber carbine, the Foxtrot Mike Products AR-15 MIKE-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 Glock® magazine feed lower receivers.

• Includes M-LOK compatible handguard
• All three uppers feature an Ultra-Light PCC barrel
• Barrel lengths: 16, 10.5 or 8.5 inches
• 16" barrel comes with MIKE-9 Muzzle Brake
• 8.5" and10.5" barrels come standard with the forward blast diffuser
• 10.5" Upper Receiver features 8.5" Ultra-Light Barrel with a 10.5" Handguard for an ultra-compact upper
• Made in the USA
• Black finish
• 1/2-36" threads

Each Foxtrot Mike Products AR-15 MIKE-9 Monolithic 9mm Upper Receiver is completely made in the USA.

Please note: Foxtrot Mike Products upper receives do not support aluminum cased ammunition, Korean manufactured magazines, and Spikes Tactical 9mm Glock® lower receivers.