The belt loop attachment is painful, it digs into me. I would not recommend this attachment.
Solid fit. Good, and adjustable, retention.
It got here quickly and was a perfect fit!
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🔧 Don't forget Thread Locker — $1.50
Keep your holster hardware secure against vibration and loosening
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FOUR BROTHERS HOLSTERS
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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.
Performance-built OWB holster designed for light duty, range use, and competitive shooting. This model fits the Sig Sauer P365-XMACRO and P365XL factory slides equipped with the Icarus Precision AIR Polymer XMACRO Grip Module and the Streamlight 1913 TLR-7 Sub.
This Holster will ONLY work with the Icarus Precision AIR Polymer XMACRO Grip Module
Engineered for speed, comfort, and retention, this rig delivers the consistency you need when every draw counts—whether you're on the clock or on patrol.
Compatible with manual safety models. Not designed for Icarus metal grip modules or Norsso aftermarket slides.
⚠️ NOT compatible with Sig-branded TLR-7 Sub lights, metal grip modules, or Norsso slides.
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.
Precision Fit – CNC-modeled and vacuum-formed for exact firearm/light combination
Red Dot Ready – Clears most low-profile optics including Holosun 507K and Sig RomeoZero
Suppressor Sight Compatible – High channel supports sights up to 0.400" tall
Open Muzzle Design – Ideal for compensators or threaded barrels
Adjustable Retention – Customize your draw tension for duty or match settings
Competition & Duty Mounting – Compatible with Safariland QLS, Blade-Tech, Blackhawk, and True North Concepts platforms
Flared Opening – Streamlined reholstering under time or stress
Made in the USA – Proudly crafted in Logansport, Indiana
Once your ride height and retention are set, apply a removable thread locker to all hardware to prevent screws from backing out during use.
P365 X-MACRO IWB Magazine Pouch
P365 X-MACRO OWB Magazine Pouch
All Icarus Precision Holsters →
Streamlight TLR-7 X Sub Data Sheet
4Bros Duty & Competition Belt Attachment Guide
Can I use this holster for competition?
Yes. This model is built with a balance of retention and speed, ideal for USPSA-style competition or tactical training.
Is it compatible with QLS mounting systems?
Yes. This holster supports Safariland QLS, Blade-Tech, and other common competition setups.
Does it fit Icarus metal grip modules or Norsso slides?
No. This holster is specifically designed for the AIR Polymer XMACRO Grip Module with factory Sig slides only.
What is “light duty”?
Light duty includes range use, armed citizen carry, and plainclothes/secondary LE applications where Level III retention is not required.
Does the holster work without the light installed?
No. This holster relies on the Streamlight 1913 TLR-7 Sub (or variant) for proper retention. The light must be mounted using the #3 key.
What should I do if I don’t see my specific configuration listed?
Contact us here — we’re happy to help if you’re unsure which holster is right for your setup.
• Outside Waistband Holster specifically designed for USPSA, 3-Gun, Steel Challenge, and other competition shooting sports (May not be IDPA Legal)
• Holster purchase includes one belt attachment, based on your selected option
• Holster Retention is easily adjustable
• Molded with .080" thick thermoplastic for durability
• Profile cut to allow red dot sights
• Open Muzzle for threaded barrels and compensators
• Minimal material and smooth edges
• Proudly Made in the USA
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

This holster is awesome! Not many options for Icarus precision customizable side cars out there, had never heard of this company prior! Man am I impressed by the overall quality of this holster! Far more adjustable than anything else I’ve tried in this style(Tier1, Trex, LAS). I’m still adjusting to exactly how I like it about 2 weeks in. Only complaint I found is my optic (Swampfox Sentinel 2) did not fit and I did have to remove material around the optic to make it compatible. I know this isn’t a common optic so I wasn’t worried about it at all! Highly recommend you go buy this one
The belt loop attachment is painful, it digs into me. I would not recommend this attachment.
Solid fit. Good, and adjustable, retention.
It got here quickly and was a perfect fit!