This UXR Magwell Assembly from Primary Weapons Systems (PWS part no. UCRW0004-01-1F) is finished in black and built for 223 Wylde/300 AAC Blackout AR-15 lowers, flaring the magazine well opening to help guide magazines in faster during a reload.

Key Specifications

• Built for 223 Wylde/300 AAC Blackout AR-15 lowers.
• Finished in black.
• Part of the UXR lower parts lineup.
• Flares the magazine well opening for a faster, easier reload.

Frequently Asked Questions

Will this fit a standard mil-spec AR-15 lower? It’s built as part of the PWS UXR platform; confirm lower receiver compatibility before ordering if you’re not running a PWS UXR lower.

Does a magwell change magazine capacity? No, a magwell only flares the opening of the lower to help guide magazines in; it doesn’t change how many rounds a magazine holds.

Buy the PWS UXR Magwell Assembly, Black

Speed up mag changes on your 223 Wylde/300 Blackout build with this black PWS UXR magwell assembly. It ships fast from our Lubbock, Texas gun shop, and our AR-15 lower parts selection has more AR-15 lower parts.