Montgo-9 (Gray)


The MONTGO-9-GRY (Gray)) blowback is a complete 9mm AR upper receiver, NO BUFFER NEEDED! It has a billet aluminum hard anodized body, with a threaded barrel for attaching flash hiders or suppressors. Learn more.




The MONTGO-9 blowback 9mm AR upper receiver, with NO BUFFER!

Compatible with any AR-15* and/or AR-9 lower (magazines for Glock® 17/19 & Sig Sauer® P320™), the Montgo-9 gives shooters endless build possibilities while being compact and versatile.

  • Solid end receiver…does not require a buffer
  • Hard anodized billet aluminum
  • 5.5” barrel, 4140 Nitrided
  • ½x28″ threaded barrel
  • Full length integral picatinny rail for installing optics or sights
  • 3.5” bottom picatinny accessory rail
  • Non-reciprocating charging handle…can be used on right or left side
  • 4140 steel nitrided bolt & trunnion for durability
  • No tools required for field stripping
  • OAL: 12.125”, Width: 1.47”, Weight: 3.5lbs

*AR-15 lowers will require the MagX adapter (or similar) to accept 9mm pistol magazines.  We recommend using a standard AR-15/AR-9 trigger system, and not binary or FRT triggers.  We do not recommend running the Montgo-9 in full auto.

Additional information

Weight 3.2 lbs
Dimensions 12 × 4 × 4 in

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