PWS UXR Magwell Assembly | Medium AR-15 | Black

The Primary Weapons Systems UXR Magwell Assembly is a medium AR-15 magwell designed to integrate with the UXR XChange ecosystem and simplify caliber-specific configuration changes. It features an ambidextrous design to support left- and right-handed operation and allows magazine type swapping depending on the selected caliber. The assembly is presented in a black finish and is intended for users who prioritize modularity and adaptability in their rifle platforms.

Typical applications include competitive shooting where rapid caliber or magazine-type changes are advantageous, and recreational range use or caliber conversion/training where the ability to reconfigure a single platform is valuable.

Product Specifications

• The manufacturer is Primary Weapons Systems.
• The model is listed as UXR.
• The product type is a magwell assembly for AR-15 platforms.
• The finish is described as black.
• The design includes ambidextrous magwell controls for versatile use.
• The assembly integrates with the UXR XChange system to enable modular component swaps.
• The documentation references compatibility with .223 Wylde chambering.
• The documentation references compatibility with 300 BLK (300 AAC Blackout) chambering.
• The listed weight value is .444 (units not specified in source data).
• The product category is listed as AR Lower Parts.
• The make/model attribute value is recorded as Primary Weapons System|UXR in source data.
• The assembly is described as enabling caliber changes by swapping barrel, magwell, and bolt within the XChange ecosystem.
• The UPC for this item is 811154032409.

This magwell assembly is aimed at shooters who want a straightforward, modular way to adapt a single AR-15 lower to multiple calibers and magazine types. Its ambidextrous layout and integration with the UXR XChange system make it useful for range-focused reconfiguration, competition scenarios, and general platform versatility. The straightforward design emphasizes compatibility and modular workflow rather than unnecessary complexity.