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Perfect for Your Pistol-Caliber Carbine Build

Styled after the Colt-pattern pistol-caliber carbine, the FM 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 FM-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 FM-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 FM Products AR-15 FM-9 Monolithic 9mm Upper Receiver is completely made in the USA.

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


Big Book Catalog, Issue:73, Page:005

FOXTROT MIKE PRODUCTS - AR-15 FM-9 COMPLETE MONOLITHIC COLT STYLE UPPER RECEIVER 9MM

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Color: Black

Length: 16

Material: Aluminum

Style: M-LOK

Type: Monolithic

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Color: Black

Length: 10.5

Material: Aluminum

Style: M-LOK

Type: Monolithic

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Color: Black

Length: 8.5

Material: Aluminum

Style: M-LOK

Type: Monolithic