Sig P365-FUSE & XC3 Sub IWB Holster with Magazine Carrier Combo

Sig Sauer P365-FUSE IWB Holster & Magazine Carrier Combo for SureFire XC3 Sub

This Inside Waistband (IWB) holster and magazine carrier combo is designed for the Sig Sauer P365-FUSE equipped with the SureFire XC3 Sub weapon light.

This combo package includes a light-bearing IWB holster and a matching P365-FUSE/P365-XMACRO Inside Waistband magazine carrier for a complete concealed carry setup.

Compatible Firearms

• Sig Sauer P365-FUSE

Light-Bearing Retention

This holster uses a light-based retention system, locking securely onto the attached weapon light rather than the firearm frame. The SureFire XC3 Sub must be installed for proper holster fit and retention.

Compatible Weapon Light:

• SureFire XC3 Sub

Light Installation: This holster is designed and tested with the SureFire XC3 Sub installed using the (A) Rail Set with the #1 Key. This mounting hardware is included with the XC3 Sub by SureFire.

Retention is adjustable, allowing you to fine-tune the fit and draw to your preference.

See product information for the SureFire XC3 Sub.

Included Mounting Options

Each holster and magazine carrier includes a Modwing plus your choice of:

• Discreet Carry Concepts Monoblock
• Ulticlip Ultituck Belt Attachment

Holster Features

• Precision-molded Kydex holster for the Sig Sauer P365-FUSE with compatible SureFire weapon light.
• Light-specific adjustable retention for a secure and consistent draw.
• Available in right- and left-handed configurations.
• Full sweat guard.
• Adjustable ride height and cant.
• Open muzzle accommodates threaded barrels and compensators.
• Minimal material profile and smooth edges help reduce printing.
• Optics-ready profile clears most red dot sights, including optics that overhang the side of the slide.
• Optional ModWing includes two inserts to adjust belt leverage and reduce firearm printing.
• Constructed from durable .093-inch thermoplastic.
• Proudly made in the USA.

Included IWB Magazine Carrier

The included Inside Waistband magazine carrier is designed for P365-FUSE and P365-XMACRO magazines and works well for appendix carry or other inside-the-waistband carry positions.

The extended carrier length places more of the magazine below the belt line to help reduce tipping and minimize magazine printing during everyday carry.

• Designed for Sig Sauer P365-FUSE and P365-XMACRO magazines.
• Ambidextrous design for bullets-forward or bullets-back carry.
• Adjustable retention.
• Adjustable ride height and approximately 20 degrees of cant.
• Smooth back and rounded edges help reduce hot spots.
• Compatible with foam wedges or Moleskine, not included.
• Constructed from durable .080-inch thermoplastic.
• Made and assembled in the USA.

Related Products & Resources

• Holster & Magazine Carrier Combo Collection
• Sig Sauer P365-XMACRO Holster Collection
• Guide to IWB Belt Attachment Options
• View Available Kydex Holster Colors
• Replacement Belt Attachments
• Replacement Holster Hardware
• Ulticlip Ultituck Attachments
• If you choose the optional ModWing and later want to remove it, you'll need our Replacement Hardware kit, which includes (2) 3/8" screws, (2) 1/4" rubber spacers, and (2) 1/4" threaded posts.
• 4Bros Holster Wedge— Designed to improve concealment and comfort by helping angle the firearm grip closer to the body while reducing pressure points during IWB carry.

For long-term reliability, apply a removable thread locker to all hardware after initial setup to help prevent loosening during regular use.

See our Apply Thread Locker to Your Holster video for a quick application guide.

Please review our Four Brothers Holsters Exchange, Return and Refund Policy

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