Quality product! Outstanding customer service just received Mine 2 days ago would highly recommend
I carry at 3 o'clock and it doesnt work well at that position. However, for appendix carry it does give better concealment.
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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.
This holster is specifically designed for use with the Icarus Precision A.C.E. 365 "X" MACRO Grip Module. Proper fit and retention depend on this exact configuration.
Icarus Precision A.C.E. 365 "X" MACRO Grip Module
This is a light-bearing Inside Waistband (IWB) holster designed for use with the following weapon lights:
Important: Retention is based on the weapon-mounted light. The holster will not retain the firearm without the light properly installed.
This inside waistband (IWB) holster is designed to fit the Sig Sauer P365-XMACRO with the Icarus Precision A.C.E. 365 “X” MACRO Grip Module and a Streamlight TLR-7 HL-X, TLR-7A, or TLR-7X weapon light mounted using the 1913-3 key. The holster will not retain the pistol without the light properly mounted.
Each holster is vacuum-formed from precision CAD-modeled molds and hand-finished in-house. All holsters are tested with the actual firearm and light for retention accuracy. Retention is user-adjustable for a custom fit.
Complete your concealed carry setup with purpose-built accessories designed for comfort, concealment, and everyday use.
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.
*We recommend applying a removable thread locker to all screws after setup to prevent hardware loosening.
• 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" thick 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
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

Product didnt fit my gun and was broken
Good quality and correct fitment. I have a p365 with the Icarus ace elite pro grip module with the gas pedal on the left side , a radiant ramjet and tlr7 fits perfectly
Great fit. Very well made
It fits exactly as described, i expected no less. This will not be my last one.
This holster is awesome! Exactly what I was looking for.
Quality product! Outstanding customer service just received Mine 2 days ago would highly recommend
I carry at 3 o'clock and it doesnt work well at that position. However, for appendix carry it does give better concealment.
Its incredibly comfortable
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