Icarus Precision A.C.E. P365-FUSE OWB Holster

 Outside Waistband Holster for Sig Sauer P365-FUSE with Icarus Precision Grip Modules

Note:  Icarus Precision supporting holsters are not returnable for anything other than quality or workmanship issues. They are specialty items for Icarus Precision Grip Modules used with factory slides, which impact fit and function of the holster. We do not guarantee fitment with aftermarket slides or other components.

Grip Module Compatibility (Start Here)

This holster is specifically designed for use with the Icarus Precision A.C.E. “X” MACRO, FUSE MACRO or FUSE EVO grip module. Proper fit and retention depend on this exact configuration.

Explore available grip module options from Icarus Precision:

Icarus Precision A.C.E. 365 “X” MACRO

Icarus Precision A.C.E. 365 "FUSE" EVO

Icarus Precision A.C.E.. 365 "FUSE" MACRO

• Only compatible with Icarus grip modules listed above
• Not compatible with AXG or SXG grip modules
• Not compatible with Icarus Air Polymer grip modules
• Not compatible with Icarus 311 grip modules

Precision Construction

Each holster is vacuum-formed using precision-machined molds based on CAD models of the actual firearm. After forming, every holster is meticulously trimmed and finished in-house to achieve smooth edges and consistent quality.

We test each holster on the actual firearm to ensure dependable retention and a clean draw. Retention is fully user-adjustable to match your preferred feel.

This outside waistband holster is purpose-built for the Sig Sauer P365-FUSE slide assemblies when paired with the Icarus Precision A.C.E. 365 “X” MACRO,  A.C.E.365 "FUSE" MACRO, and  A.C.E. "FUSE" EVO Grip Modules.  It delivers secure retention, fast indexing, and reliable performance in an OWB configuration.

Not compatible with P365 AXG or SXG grip modules, Norsso slides, or the Icarus Air Polymer grip modules. Supports all compatible manual safety variants.

This holster is designed to work with the factory slide. Any aftermarket slide design variations from the OEM slide dimensions will affect the holster fit and retention.

Features

• Full sweat guard for added comfort
• Adjustable retention
• Optic-ready cut to clear popular red dot sights
• Adjustable ride height and cant for personalized positioning
• Open muzzle to support threaded barrels and compensators
• Available in right- and left-handed configurations
• High sight channel accommodating suppressor-height sights (up to .400" / 10mm)
• Proudly made in the USA

Belt Attachments, Magazine Pouches & Related Products

Learn about all belt attachment options for OWB carry in our detailed guide:
Outside Waistband Belt Attachments Explained

Please note: Our 4BROS Belt Slides are designed to work with standard belts for everyday carry, not thicker "Battle Belt" style belts with rows of MOLLE on the outside. 

Compatible magazine pouches:

• P365 X-MACRO IWB Magazine Pouch
• P365 X-MACRO OWB Magazine Pouch

View all compatible holsters in our
Icarus Precision Holster Collection.

Need help selecting the right color? Review our
Holster Color Guide.

*We recommend applying a removable thread locker to all screws after receiving your holster to prevent hardware loss during use.

FAQs

Will this holster fit AXG or SXG P365 grip modules?

No. AXG and SXG grip modules are not supported.

Does the holster work with manual safety P365 models?

Yes, all compatible manual safety configurations are supported.

Is the holster compatible with Icarus Air Polymer grip modules?

No. It is specifically designed for aluminum A.C.E. and A.C.E. EVO modules.

Does this holster fit Norsso slides?

No. This OWB holster does not support Norsso aftermarket slide profiles.

Will the holster clear red dot optics?

Yes. The holster is cut to clear most popular red dot sights used on P365-series pistols.

Can this holster accommodate threaded barrels or compensators?

Yes. The open-muzzle design supports extended barrels and compensators without interference.

Is this holster available for left-handed shooters?

Yes. This holster is available in both right- and left-handed configurations. Select your preferred configuration when ordering.

Where can I learn more about OWB belt attachments?

See our full guide here:
OWB Belt Attachment Guide.

• Full Sweat Guard
• Adjustable Retention
• Profile cut to allow red dot sights
• Open Muzzle for threaded barrels and compensators
• Minimal material and smooth edges
• Proudly Made in the USA

• 4BROS Belt Slide
• Tek-Lok
• Sting Ray Belt Slide
• QLS Fork
• No Belt Attachment

OWB Belt Attachments Explained

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

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

Please review our Four Brothers Holsters Terms of Service