GBRS Group x Priority 1 OWB Holster (Left Handed) GBRS Group x Priority 1 Modular Outside the Waistband Holster collaboration is DJ&';s favorite go-to holster for range use. Boltaron construction with adjustable screw-on retention for user preference. Open-ended design allows for threaded barrels and compensators. Optics cut ready to accommodate most slide-mounted optics. Designed to optimize your carry experience with the ability for various belt or drop-leg mounting options. Use this in conjunction with our offering of True North Concepts Modular Holster Adapter. Please see below for additional information. MADE IN THE USA | BERRY COMPLIANT FEATURES: Adjustable positive retention Paddle Attachment included Open muzzle to accept threaded barrels & compensators, Supports aftermarket sights, including suppressor height sights Optic Cut Ready to accommodate most slide-mounted optics Precision formed from 0.93 Boltaron COMPATIBILITY: GLOCK: 9mm/.40 models with SureFire X300U or X300T, A and B lights. (Glock 17/19/19X/22/23/34/35/45) SIG P320: 9mm/.40 models with SureFire X300U or X300T, A and B lights. (SIG P320 Compact, Carry, XCarry, Full Size, X5 Legion, M17/M18)