The Gbrs Group X Priority 1 OWB holster for Sig Sauer P320 with X300U is a purpose-built carry solution born from the collaboration between two names that know what works on the gun range and in the field. Built from 0.93" Boltaron polymer, this right-hand outside-the-waistband holster is engineered for shooters who run a P320 with a SureFire X300U-A or X300U-B mounted light and want a dependable, modular platform that doesn't compromise on accessibility or retention. The FDE color blends seamlessly with most gear and clothing setups.

What sets this holster apart is its thoughtful design for real-world use. The open-muzzle construction means you can run threaded barrels or compensators without limitation—no grinding, no workarounds. The holster comes optics-cut ready, so most modern slide-mounted red dots will work without modification. Retention is user-adjustable via screw, so you can dial in the draw resistance that fits your preference and training style. A paddle attachment comes standard, and the holster integrates with True North Concepts Modular Holster Adapters if you want to explore drop-leg or alternative mounting positions.

This holster is compatible with SIG P320 models across the lineup—9mm and .40 caliber variants including Compact, Carry, XCarry, Full Size, X5 Legion, M17, and M18. One critical note: this holster is engineered specifically for the SureFire X300U-A and X300U-B. Other light brands and models will not fit. If you're already running that light, you've found your match. If you're not, this holster will drive you to get one—and that's not a bad thing.

The Gbrs Group X Priority 1 OWB holster for Sig Sauer P320 with X300U is a purpose-built carry solution born from the collaboration between two names that know what works on the gun range and in the field. Built from 0.93" Boltaron polymer, this right-hand outside-the-waistband holster is engineered for shooters who run a P320 with a SureFire X300U-A or X300U-B mounted light and want a dependable, modular platform that doesn't compromise on accessibility or retention. The FDE color blends seamlessly with most gear and clothing setups.

What sets this holster apart is its thoughtful design for real-world use. The open-muzzle construction means you can run threaded barrels or compensators without limitation—no grinding, no workarounds. The holster comes optics-cut ready, so most modern slide-mounted red dots will work without modification. Retention is user-adjustable via screw, so you can dial in the draw resistance that fits your preference and training style. A paddle attachment comes standard, and the holster integrates with True North Concepts Modular Holster Adapters if you want to explore drop-leg or alternative mounting positions.

This holster is compatible with SIG P320 models across the lineup—9mm and .40 caliber variants including Compact, Carry, XCarry, Full Size, X5 Legion, M17, and M18. One critical note: this holster is engineered specifically for the SureFire X300U-A and X300U-B. Other light brands and models will not fit. If you're already running that light, you've found your match. If you're not, this holster will drive you to get one—and that's not a bad thing.