Gun of the Week: Primary Weapons Systems UXR

Published on April 17, 2026
Duration: 2:28

The Primary Weapons Systems UXR is a highly modular rifle system designed for adaptability. It allows for quick caliber changes between .308, 5.56 NATO, and future options like 6.5 Creedmoor and 6mm ARC. Key features include a one-piece upper rail for solid optic mounting, a side-folding stock for transport, and ambidextrous controls. The rifle accepts standard AR-15 pistol grips and is compatible with most AR-15 drop-in triggers.

Quick Summary

The Primary Weapons Systems UXR is a highly modular rifle system that allows for quick caliber changes between .308, 5.56 NATO, and future options like 6.5 Creedmoor. It features a one-piece upper rail for stable optic mounting, a side-folding stock for transport, and fully ambidextrous controls, making it adaptable for various shooting needs.

Chapters

  1. 00:01Introduction to Gun of the Week
  2. 00:08Introducing the Primary Weapons Systems UXR
  3. 00:14Modularity of the UXR
  4. 00:24Caliber Swapping Capabilities
  5. 00:50Disassembly and Barrel Removal
  6. 00:54One-Piece Upper Rail System
  7. 01:07Side-Folding Stock
  8. 01:15Pistol Grip Compatibility
  9. 01:21Magazine and M-LOK Features
  10. 01:34Optic Setup (EOTech Vudu LPVO)
  11. 01:40Non-Reciprocating Charging Handle
  12. 01:47Trigger Compatibility
  13. 01:57Ambidextrous Operation
  14. 02:14Where to Find More Information

Frequently Asked Questions

What makes the Primary Weapons Systems UXR rifle unique?

The Primary Weapons Systems UXR stands out due to its exceptional modularity, allowing for quick caliber changes between various cartridges like .308 and 5.56 NATO. It also features a one-piece upper rail for stable optic mounting and ambidextrous controls for user convenience.

What calibers can the Primary Weapons Systems UXR rifle accommodate?

The UXR is designed to accommodate multiple calibers. It currently supports .308 Winchester and 5.56x45mm NATO, with plans to offer 6.5 Creedmoor, 6mm ARC, and .300 Blackout in the future, all within the same rifle platform.

Does the Primary Weapons Systems UXR have ambidextrous controls?

Yes, the Primary Weapons Systems UXR is fully ambidextrous. This includes the safety selector, magazine release, and bolt release, making it adaptable for both left-handed and right-handed shooters.

What are the benefits of the UXR's one-piece upper rail?

The one-piece upper rail on the UXR provides a rock-solid and continuous platform for mounting optics, such as scopes or clip-on devices. This design ensures excellent stability and helps maintain a consistent zero, even with heavy accessories.

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