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FOUR BROTHERS HOLSTERS

Sig Sauer P320 with TLR-1 HL IWB Holster

Sig Sauer P320 with TLR-1 HL IWB Holster

Regular price $75.00 USD
Regular price Sale price $75.00 USD
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Shipping calculated at checkout.

Description

Sig Sauer P320 and Streamlight TLR-1 / TLR-1 HL / TLR-1 HP IWB Holster

This Inside Waistband holster is designed for the Sig Sauer P320 and Streamlight TLR-1, TLR-1 HL, or TLR-1 HP weapon-mounted light combination. Built for secure concealed carry, the holster uses light-based retention and is precision-formed for consistent fit, adjustable retention, and reduced printing.

Sig Sauer P320 and Streamlight TLR-1 Compatibility

This light-bearing IWB holster is confirmed to fit the Sig Sauer P320 Carry, Full Size, XFIVE (X5), and DH3 models when equipped with a Streamlight TLR-1, TLR-1 HL, or TLR-1 HP weapon-mounted light.

The holster retention is indexed on the weapon light rather than the pistol. The Sig Sauer P320 and Streamlight TLR-1, TLR-1 HL, or TLR-1 HP must therefore be used as a complete combination, and the holster will not provide the intended fit or retention without the weapon light installed.

This holster was designed using the P320 key supplied with the Streamlight TLR-1 HL. Using a different light key may position the weapon light farther forward on the grip and change the position of the Sig Sauer P320 and Streamlight TLR-1 combination inside the holster.

Important Fit Exclusions

  • Does not fit the Streamlight TLR-1 HL-X or TLR-1 HP-X configurations.
  • Does not fit Sig Sauer P320 AXG models.
  • Does not fit the Sig Sauer P320 Spectre Comp.

Precision-Formed Kydex IWB Holster

Each holster is vacuum formed using a precision-machined mold developed from a CAD model of the actual firearm. Every holster is formed, trimmed, and folded in-house, then final fit and function testing is performed using the actual pistol and weapon light combination to verify fit and retention.

Adjustable retention allows you to fine-tune the holster to your preferred draw resistance. Variations between older and newer TLR-1, TLR-1 HL, and TLR-1 HP light bodies can affect fit, so the retention system is designed to accommodate normal dimensional differences among these lights.

Optics-Ready Sig Sauer P320 IWB Holster

The holster profile is cut to accommodate larger red dot sights, including the Trijicon SRO and Sig Sauer ROMEO1.

IWB Holster Features

  • Open muzzle design
  • Full sweat guard
  • Adjustable retention
  • Adjustable ride height and cant
  • Made from .093-inch thermoplastic for durability
  • Minimal excess material and smooth edges to help reduce printing
  • Optional Modwing with two inserts for adjustable belt leverage to help reduce firearm printing
  • Designed for Inside Waistband concealed carry
  • Made in the USA

IWB Belt Attachment Options

Choosing the correct belt attachment can affect ride height, concealment, stability, and everyday comfort. Review our Inside Waistband holster belt attachment guide to compare available mounting configurations.

Replacement Holster Hardware

If you want to remove the Modwing, a replacement hardware kit is available with two 3/8-inch screws, two 1/4-inch rubber spacers, and two 1/4-inch threaded posts. View the replacement holster hardware and Modwing removal kit.

Sig Sauer P320 Magazine Carrier Options

Complete your carry configuration with a Sig Sauer P320 IWB magazine carrier or a Sig Sauer P320 OWB magazine carrier.

Holster Color Options

Review available finishes and color choices in our Kydex holster color and finish guide.

Thread Locker Recommendation

We strongly recommend applying removable thread locker to each holster screw after receiving and configuring your holster. This helps prevent hardware from loosening or becoming lost during regular use.

Frequently Asked Questions

Which Sig Sauer P320 models fit this Streamlight TLR-1 IWB holster?

The Sig Sauer P320 and Streamlight TLR-1 / TLR-1 HL / TLR-1 HP IWB holster is confirmed to fit P320 Carry, Full Size, XFIVE (X5), and DH3 models. It does not fit P320 AXG models.

Does this holster fit the Streamlight TLR-1 HL-X or TLR-1 HP-X?

No. This holster does not fit the Sig Sauer P320 and Streamlight TLR-1 HL-X or TLR-1 HP-X configurations.

Can I use this holster without the Streamlight TLR-1 installed?

No. Retention is indexed on the weapon light rather than the pistol. The appropriate Streamlight TLR-1, TLR-1 HL, or TLR-1 HP must be installed on the Sig Sauer P320 for the holster to provide its intended fit and retention.

Is this Sig Sauer P320 and Streamlight TLR-1 holster optics ready?

Yes. The holster profile is cut to accommodate larger red dot sights, including the Trijicon SRO and Sig Sauer ROMEO1.

Can the holster retention be adjusted?

Yes. The retention system can be adjusted to fine-tune draw resistance and accommodate normal dimensional variations between TLR-1, TLR-1 HL, and TLR-1 HP light bodies.

Can I adjust the ride height and cant?

Yes. The IWB configuration supports adjustable ride height and cant, allowing the holster position to be tuned for concealment, comfort, and draw preference.

What does the optional Modwing do?

The optional Modwing uses leverage against the inside of the belt to help rotate the firearm grip closer to the body and reduce printing. Two inserts are included to adjust the amount of leverage.

What Key is used in the TLR-1 HL or TLR-1 HP to locate the light on the rail of the P320 Pistol?

This holster was designed using the P320 key supplied with the Streamlight TLR-1 HL.

Features

• Full Sweat Guard
• Adjustable Retention
• Adjustable Cant
• Profile cut to allow red dot sights
• Open Muzzle for threaded barrels and compensators
• Minimal material and smooth edges
• Made from .093" thick thermoplastic for durability.
• Optional Modwing includes 2 inserts to allow the user to adjust the amount of leverage placed against the inside of the belt to reduce firearm printing
• Proudly Made in the USA

Attachments

  • Monoblock
  • 1 Series Gear Clips
  • Ultituck
  • Soft Loops 
  • RCS Overhooks
  • Ulticlip

IWB Belt Attachments Explained

Made in the USA

Made in America. Founded, located, engineered, manufactured, and shipped from Northern Indiana.

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