Primary Weapons Systems UXR Magwell MD Frame AR15

The Primary Weapons Systems PWS UXR MAGWELL MD FRAME AR15 delivers advanced modularity through the proprietary UXR, or User XChange Rifle, a pinnacle of firearm innovation that lets you rapidly adapt to alternate calibers on the same serialized platform by exchanging just three parts—the magazine well, bolt head, and barrel. This patent-pending XCHANGE system, paired with a bore-evacuation chamber integrated into the barrel and a refined long-stroke piston arrangement, provides a smoother, more controlled shot with noticeably lower recoil. Designed for versatility, the UXR Magwell fits PWS UXR Elite Rifle Systems in a medium frame, ensuring reliable performance across long-range precision tasks and dynamic, fast-paced engagements alike. The black construction emphasizes durability and consistent handling, while the included magazine well assembly integrates seamlessly into your build for clean, efficient reloads. Ideal for shooters seeking rapid caliber flexibility, precise control, and a streamlined upgrade path, this magwell is a compelling choice for anyone prioritizing modularity, reliability, and an enhanced shooting experience on the AR15 platform.