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Matador Arms Montgo-9 Complete 9mm Upper

Part Number: AU-93154
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On sale $594.99 $499.99
Retail Price:$594.99
Your Savings:$95.00(16%)
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Availability: In Stock

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Matador Arms Montgo-9 Complete 9mm Upper

The Matador Arms Montgo-9 Complete 9mm Upper fits most AR-15/AR-9 Lowers. This upper features a 5.5-inch barrel crafted from 4140 steel with a black nitride finish. The billet aluminum upper receiver is hardcoat anodized to maximize its strength and durability.

Compatible with any AR-15* and/or AR-9 lower (magazines for Glock® 17 & 19 OR 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
  • 1/2x28" threaded barrel
  • Full-length integral Picatinny rail for installing optics or sights
  • 3.5” bottom Picatinny accessory rail
  • Non-reciprocating charging handle which can be used on the 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.

Brand: Matador Arms
Model: Montgo-9 Complete 9mm Upper
Platform: AR-9
Type: Billet
Material: 6061-T6
Style: Custom
Caliber Compatibility: 9MM
Upper Section: Picatinny Rail
Finish: Anodized
Forward Assist: No
FA Pin Type: N/A
Dust Door: No

Note: Complete firearm pictured is an example of what this Matador Arms Montgo-9 Complete 9mm Upper looks like finished on a complete firearm.
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