Icarus Precision A.C.E. Module P365-FUSE IWB Holster

Inside Waistband Holster for Sig Sauer 

P365-FUSE with Icarus Precision Grip Modules

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 Build & Fitment

Each holster is vacuum-formed on precision-machined molds developed from CAD models of the actual firearm. After forming, every unit is trimmed, folded, and finished in-house to ensure consistency and smooth edges.

Final fit and retention testing is performed using the real firearm to confirm proper lockup and reliable draw. Retention can be easily tuned to your personal preference.

This inside waistband holster is engineered for the Sig Sauer P365-FUSE slide 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 provides a secure, comfortable concealed carry solution tailored to these upgraded grip systems.

Not compatible with P365 AXG or SXG grip modules, Norsso slides, or any Icarus Air Polymer grip modules. This holster does support manual safety models.

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.

Holster Features

• Full sweat guard for enhanced comfort
• Adjustable retention
• Cut to clear red dot sights
• Adjustable ride height and cant
• 100% compatible with the Phlster OS Enigma
• Open muzzle to support threaded barrels or compensators
• High sight channel for suppressor-height sights (up to .400 or 10mm)
• Smooth surfaces and rounded edges to reduce hotspots
• Optional Modwing with two inserts to minimize printing and improve draw access
• Proudly made in the USA

Belt Attachments, Mag Pouches & Related Gear

Learn how each belt attachment works in our detailed guide: Inside Waistband Belt & No-Belt Attachment Options Explained

Magazine carriers for these models:

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

Explore all compatible holsters in our Icarus Precision Holster Collection.

Need help selecting a color? View our Holster Color Guide.

*We recommend applying a removable thread locker to all screws upon receipt to prevent hardware loss during use.

FAQs

Will this holster fit the P365 AXG or SXG modules?

No. This holster does not fit AXG or SXG grip modules.

Does the holster support manual safety versions of the P365?

Yes, all compatible P365 models with manual safety are supported.

Does this holster fit Icarus Air Polymer grip modules?

No. The holster is designed only for the aluminum A.C.E. and A.C.E. EVO modules.

Is the holster compatible with Norsso slides?

No, Norsso slide profiles are not supported.

Does the holster clear red dot optics?

Yes. The holster is cut to clear most popular red dot sights.

Can I use this holster with threaded barrels or compensators?

Yes. The open-muzzle design accommodates extended barrels and compensators.

What belt attachments do you recommend?

See our full explanation of belt and no-belt options here: IWB Belt Attachment Guide.