Primary Weapons Systems UXR Magwell MD Frame – .308/AR-10

The PWS UXR Magwell MD Frame is a billet lower receiver component designed for .308 Winchester/7.62 NATO AR-10 pattern rifles. This magwell frame acts as the foundation for the UXR modular lower system, providing a rigid magazine interface and trigger pocket while allowing configuration flexibility through interchangeable grip modules and stocks. Shooters building or upgrading a .308 AR platform benefit from the precision fit and enhanced ergonomics of the UXR system.

Machined from billet aluminum with a hard-coat anodized finish, the UXR MD Frame features ambidextrous controls and a flared magwell for faster reloads under stress. Installation requires basic AR-15/AR-10 assembly knowledge and standard tools—no gunsmithing required for the frame itself, though complete lower assembly involves installing trigger group, buffer system, and grip module per manufacturer specifications. Compatible with mil-spec AR-10 upper receivers and DPMS-pattern magazines.

• Part Type: Billet Lower Magwell Frame
• Compatible Firearms: .308 Win/7.62 NATO AR-10 Pattern Rifles
• Material: Billet Aluminum
• Finish: Hard-Coat Anodized
• Installation: Drop-In (Basic AR Assembly Knowledge Required)
• Includes: Magwell Frame (Grip Module and Internal Parts Sold Separately)