The GBRS Group x Priority 1 IWB holster for SIG P320 is a purpose-built inside-the-waistband carry solution designed for shooters who demand both concealment and reliability. This right-hand holster blends the collaboration expertise of two names trusted by serious gun owners, offering a refined alternative to generic IWB options. Whether you're carrying a Compact, Carry, XCarry, Full Size, X5 Legion, or the military M17/M18, this holster is engineered to work across the P320 platform with precision and accountability.

Built from .080-inch Boltaron polymer and precision-formed through CNC machining, the Priority 1 delivers durability without bulk. Every holster is individually hand-finished, assembled, test-fit, and inspected to ensure consistent quality—no two production runs cut corners. The open muzzle design accepts threaded barrels and compensators, future-proofing your carry setup against upgrades. The full sweat guard keeps your rear sight off your body, extending comfort on all-day carry, while a molded optic channel accommodates most slide-mounted optics and suppressor-height sights, so your modern P320 build isn't limited by your holster.

Concealment is where this design shines. The molded concealment wing rotates your grip naturally toward your body to reduce printing and improve stability during the draw. The Discreet Carry monoblock belt clip works with or without a belt, giving you flexibility for various carry situations and clothing choices. Adjust cant from 0 to 15 degrees, dial in retention to your preference with adjustable screws, and fine-tune ride height with optional tuck-able attachments. This is a holster built for people who understand their gear, not a one-size-fits-most compromise.

Key Features

• Adjustable cant and retention for a customized carry feel
• Full sweat guard and concealment wing for all-day comfort and discrete carry
• Molded optic channel ready for modern slide-mounted red dots and suppressor-height sights
• Open muzzle accepts threaded barrels, compensators, and standard barrel setups
• Discreet Carry monoblock clip works with or without a belt
• Precision CNC-molded and hand-finished Boltaron construction
• Adjustable ride height with optional tuck-able belt attachments

Specifications

Brand	GBRS Group x Priority 1
Model	Priority 1 IWB Holster
Firearm Compatibility	SIG P320 (all sizes: Compact, Carry, XCarry, Full Size, X5 Legion, M17, M18)
Hand Orientation	Right Hand
Carry Type	Inside the Waistband (IWB)
Material	.080-inch Boltaron polymer
Color	Black
Cant Adjustment	0 or 15 degree
Belt Attachment	Discreet Carry monoblock clip (works with or without belt)
Muzzle Design	Open-ended (accepts threaded barrels and compensators)
Optics Ready	Molded optic channel for slide-mounted optics and suppressor-height sights
Retention	Adjustable screw-on retention

Frequently Asked Questions

What SIG P320 models does this holster fit?

The Priority 1 holster is compatible with all P320 platform guns, including Compact, Carry, XCarry, Full Size, X5 Legion, M17, and M18 models.

Can I use this holster with a threaded barrel or compensator?

Yes. The holster features an open muzzle design that accommodates most threaded barrels and compensators, so you're not limited to stock barrel configurations.

Will this holster work with my red dot sight?

Yes. The Priority 1 includes a molded and trimmed optic channel designed to work with most slide-mounted optics and suppressor-height sights.

Do I need to wear a belt with this holster?

No. The Discreet Carry monoblock belt clip is designed to secure the holster inside the waistband whether you're wearing a belt or not, though a belt is always recommended for best retention and comfort during carry.