Montgo-9

Published on February 15, 2023
Duration: 12:11

This review covers the Matador Arms Montgo-9 9mm direct blowback upper receiver. Key features include its compatibility with Glock 17/19 and Sig 320 magazines, and a recoil spring assembly housed within the upper, allowing for various stock configurations. The video demonstrates disassembly and reassembly, highlights its performance in a PCC match, and discusses potential issues with optics under recoil.

Quick Summary

The Matador Arms Montgo-9 9mm upper receiver is compatible with Glock 17/19 and Sig 320 magazines. Its recoil spring assembly is housed within the upper, allowing for diverse stock options. The 5.5-inch barrel has a 1/2-28 thread pitch, and users must ensure any attached muzzle device has a 9mm bore for safety.

Chapters

  1. 00:00Introduction to Montgo-9 Upper
  2. 00:14Magazine Compatibility (Glock, Sig 320)
  3. 00:37Incompatible Magazines (Colt, MPX, Scorpion)
  4. 00:54Recoil Spring Assembly Location
  5. 01:13Stock Options & Adapters
  6. 01:49Barrel Specifications (Length, Material, Coating)
  7. 01:54Muzzle Thread Pitch & Device Warning
  8. 02:16Iron Sight Recommendations
  9. 02:44Upper/Lower Attachment & Field Stripping Screw
  10. 03:14Disassembly Process
  11. 03:41Reassembly Process
  12. 06:09Back Together & Ready for Range
  13. 06:20Make Ready & First Shots
  14. 06:39Optic Failure During Stage
  15. 07:09No Last Round Bolt Hold Open
  16. 07:34Switching to Iron Sights
  17. 07:42Stage 2: Iron Sights Division
  18. 08:33Stage 3: Reloads & Plate Racks
  19. 09:18Locking Bolt Back (Manual)
  20. 09:30Stage 4: Target Array
  21. 09:50Ejection Pattern (Left-Handed)
  22. 10:06Stage 5: Final Stage Performance
  23. 10:18Future Plans (Red Dot)
  24. 11:16Montgo-9 Overall Impressions
  25. 11:26Optic Warranty Return
  26. 11:57Upcoming Customization

Frequently Asked Questions

What types of magazines are compatible with the Matador Arms Montgo-9 upper receiver?

The Matador Arms Montgo-9 upper receiver is designed to be compatible with Glock 17, Glock 19, and Sig Sauer P320 magazines. It requires a single-column feed at the top of the magazine.

What are the key design features of the Matador Arms Montgo-9 upper receiver?

A notable feature is the recoil spring assembly housed entirely within the upper receiver. This design allows for the use of various rail adapter systems for different stock configurations, such as MCX or MPX style stocks.

What is the barrel specification for the Matador Arms Montgo-9?

The Montgo-9 features a 5.5-inch barrel made from 4140 steel with a nitride coating. The muzzle thread pitch is 1/2-28, compatible with standard AR-15 muzzle devices, provided they have a 9mm bore.

Does the Matador Arms Montgo-9 have a last-round bolt hold-open feature?

No, the Montgo-9 upper receiver does not have a last-round bolt hold-open mechanism. Shooters should be mindful of this and reload proactively before the magazine is empty to avoid cycling an empty chamber.

What safety considerations are mentioned for using muzzle devices with the Montgo-9?

It is critical to use muzzle devices with a 9mm bore when attached to the Montgo-9's 9mm barrel. Using a 5.56 muzzle device on a 9mm barrel can lead to a catastrophic failure.

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