Sig Sauer P320 & Align Tactical Thumb Rest & TLR-1 HL-X IWB Holster

Sig Sauer P320 Inside Waistband Kydex Holster with Streamlight TLR-1 HL-X

This inside waistband (IWB) Kydex holster is designed for the Sig Sauer P320 pistol family, paired with the Streamlight TLR-1 HL-X or TLR-1 HL-X USB weapon lights. It is also compatible with the Align Tactical® Thumb Rest Takedown Lever for improved grip and weapon control.

Confirmed Pistol Fit

• Sig Sauer P320 Full Size
• Sig Sauer P320 Carry
• Sig Sauer P320 M17
• Sig Sauer P320 M18
• Sig Sauer P320 AXG Pro
• Sig Sauer P320 X5 Legion

⚠️ Holsters made to support Align Tactical®, Gas Pedal®, and Tactical Development aftermarket accessories are non-returnable except for quality or workmanship issues, as these items affect concealability and fit.

Light Compatibility

Retention is based on the Streamlight TLR-1 HL-X or HL-X USB light body, not the pistol itself. This holster will not work without the weapon light attached. The holster is designed for use with the 1913 key.

⚠️ Not compatible with the Streamlight TLR-1 or TLR-1 HL models.

For more details, see the Streamlight TLR-1 HL-X product page. Our recommended option is the Streamlight TLR-1 HL-X USB available from Four Brothers.

Product Details

• Vacuum-formed from precision CAD-designed molds
• Formed, trimmed, and folded in-house
• Final fit tested with firearm/light combination
• Retention is adjustable to user preference

Features

• Full sweat guard
• Adjustable retention and cant
• Optics cut for most red dot sights
• Open muzzle for threaded barrels and compensators
• Slim profile with smooth edges to reduce printing
• Made from .093" thermoplastic for durability
• Optional Modwing with two inserts for adjustable concealment pressure
• Proudly made in the USA

Recommended Accessories

Pair your holster with compatible magazine carriers:

• Sig Sauer P320 IWB Magazine Carrier
• Sig Sauer P320 OWB Magazine Carrier

Learn more about attachment styles in our IWB Belt & No-Belt Attachment Guide and review our Holster Color Guide for customization options.

Explore our complete Align Tactical holster collection or shop all Streamlight TLR-1 HL-X holsters.

Pro Tip: Apply a removable thread locker to each holster screw to prevent loosening during carry.

FAQs

• Will this holster work without the TLR-1 HL-X light?
  No, the holster retention is based on the weapon light and will not function without it.
• Is the holster optics-compatible?
  Yes, it clears most red dot sights, including optics that extend over the slide.
• Which Sig Sauer models are supported?
  It fits the P320 Full Size, Carry, M17, M18, AXG Pro, and X5 Legion.
• Can I return a holster built for Align Tactical or Gas Pedal accessories?
  No, these are custom specialty items and are only returnable for workmanship defects.
• What features improve concealment with this holster?
  The optional Modwing with two inserts increases belt leverage, reducing firearm printing inside the waistband.