Sig Sauer P365-XMACRO IWB Holster (MACRO)

Sig Sauer P365-XMACRO IWB Holster

The Sig Sauer P365-XMACRO IWB Holster from Four Brothers Inc. is designed for reliable concealed carry with a precise fit, adjustable retention, and a slim profile that minimizes printing. This Inside Waistband holster is molded specifically for the P365-XMACRO platform to provide a secure and consistent draw for everyday carry.

This holster fits the Sig Sauer P365-XMACRO, P365-XMACRO COMP, P365-XMACRO TACOPS, and P365-XMACRO COMP ROMEOZERO ELITE pistols. Models equipped with a manual safety are fully supported.

Each holster is vacuum-formed using a precision-machined mold created from a CAD model of the actual firearm. Every holster is formed, trimmed, and folded in-house, then tested with real pistols to confirm proper retention, reliable fitment, and consistent draw performance.

Built for Comfortable Concealed Carry

The slim design and smooth edges help reduce printing while maintaining comfort during extended carry. Adjustable retention allows you to fine-tune the draw tension to match your personal preference.

The holster profile is cut to clear most slide-mounted red dot optics commonly installed on the P365-XMACRO platform. An open muzzle design allows compatibility with threaded barrels or compensators that extend past the slide.

This holster is also compatible with the Phlster Enigma system, enabling beltless concealed-carry configurations.

Holster Features

• Full sweat guard for comfort and firearm protection
• Adjustable retention for customizable draw tension
• Adjustable ride height and cant for personalized carry setup
• Compatible with the Phlster Enigma system
• Constructed from durable .093" thermoplastic
• Available in right- and left-handed configurations
• Open muzzle design compatible with threaded barrels or compensators
• Minimal material profile with smooth edges to help reduce printing
• Optics compatible with pistols equipped with red dot sights
• Optional Modwing concealment claw with two adjustable inserts
• Proudly made in the USA

Compatible Accessories and Resources

Browse all holsters designed for the P365-XMACRO platform:

Sig Sauer P365 X-MACRO holster collection

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.

Our Belt Attachment Blog Article explaining the different options can be found here:

4Bros Four Brothers Holsters Inside Waistband Attachments Explained

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.

Magazine Pouches for these models can be found here:

Complete your concealed carry setup with a dedicated magazine carrier:

P365 X-MACRO IWB magazine carrier

P365 X-MACRO OWB magazine carrier

Explore available Kydex colors and patterns before selecting your holster finish:

Holster color guide

Frequently Asked Questions

Which pistols fit this holster?

This holster fits the Sig Sauer P365-XMACRO, P365-XMACRO COMP, P365-XMACRO TACOPS, and P365-XMACRO COMP ROMEOZERO ELITE models.

Is this holster compatible with red dot optics?

Yes. The holster profile is cut to clear most slide-mounted red dot optics commonly used on the P365-XMACRO platform.

Is the holster compatible with the Phlster Enigma?

Yes. This holster is compatible with the Phlster Enigma system for beltless concealed carry setups.

Can the retention be adjusted?

Yes. The retention screw allows you to adjust the draw resistance to match your preferred carry configuration.

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.

Will it work with threaded barrels?

Yes. The open muzzle design allows compatibility with threaded barrels or compensators that extend past the slide.

Should I apply thread locker to the screws?

We recommend applying removable thread locker to each screw after receiving your holster to help prevent screws from loosening during regular use.

• 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" 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

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

IWB Belt Attachments Explained

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

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