Ever find yourself wishing your carry setup had a little more capacity without adding a ton of bulk? That’s the exact problem the P365-XMACRO was engineered to solve, and this kit is the most budget-conscious way I’ve seen to get there.
Imbertsmithersarms is a Grand Forks, ND-based retailer specializing in firearms and gear for hunters and outdoorsmen. The P365-XMACRO KIT is a conversion package that upgrades your standard P365 or P365XL to the high-capacity XMACRO platform. It provides a significant magazine capacity increase in a remarkably slim frame. This kit is in stock and ready to ship today for $780.84.
Reviewed by Cody Ramirez, E-Commerce Director at Imbertsmithersarms. 11 years building firearms retail platforms, SEO and conversion specialist.
Last updated: April 2026
Why This P365-XMACRO Kit Makes Sense for Your Carry Setup
I’ve handled a lot of aftermarket parts and kits over the years, and what stands out here is the factory-direct approach. This isn’t a collection of mismatched parts; it’s the genuine Sig Sauer upgrade path. For anyone living the concealed carry lifestyle, the jump from 10, 12, or 15 rounds to 17+1 in a grip module that’s barely wider is a tangible advantage. It’s the kind of practical upgrade that makes sense when you’re out in the field or just running errands in town. You get the full XMACRO ergonomics—the improved texture, the integrated magwell, the flat trigger—without having to buy a whole new firearm. In my book, that’s a smart use of your dollars.
What’s Actually in the Box? Full Specifications
Let’s get down to brass tacks. When you order this kit online, you’re getting the core components to transform your pistol. Here’s the complete breakdown:
| Specification | Detail |
|---|---|
| Product Type | Firearm Conversion/Upgrade Kit |
| Material | Polymer Grip Module, Steel Magazines |
| Manufacturing | Sig Sauer, USA |
| Finish | Black Polymer, Nitron on Magazines |
| Hardness/Quality | Factory OEM Specifications |
| Compatibility | Sig Sauer P365, P365XL FCU (Fire Control Unit) |
| Installation/Usage | User-Installable; Requires FCU Swap |
| Weight (Grip Module) | Approx. 2.5 oz |
| Dimensions (Grip) | Fits XMACRO 17-round magazines |
| Country of Origin | United States |
| Condition | New, Factory Fresh |
| SKU | KIT-P365-XMACRO |
How Does This Sig Kit Stack Up Against Other Options?
You’ve got choices when it comes to modifying your P365. Let’s compare this official kit to two common routes shooters take.
| Feature | Sig Sauer P365-XMACRO Kit (This Product) | Aftermarket Polymer Grip (e.g., Wilson Combat) | Custom Aluminum Grip (e.g., Icarus Precision) |
|---|---|---|---|
| Material | Factory Sig Polymer | Aftermarket Polymer | Machined Aluminum |
| Quality | OEM, Guaranteed Fit | High, but aftermarket | Premium, Heavier |
| Compatibility | Designed for XMACRO Mags | Uses Standard P365 Mags | Often Model-Specific |
| Shipping | In Stock, Ships Today | Varies, Often Backordered | Long Lead Times Common |
| Lifespan/Durability | Proven Duty Use | Good for Carry | Extremely Durable |
| Price Point | $780.84 (Kit with Mags) | ~$65 (Grip Only) | $250+ (Grip Only) |
The takeaway? This kit sits in the sweet spot. It’s more capable than a simple grip swap because it includes the magazines, and it’s significantly more affordable than going the full custom metal route while offering proven reliability.
The Honest Pros and Cons
After handling this setup, here’s my straight assessment.
Pros:
- ✅ Major Capacity Boost: Jump to 17+1 rounds while maintaining a concealable profile.
- ✅ Factory Fit & Reliability: It’s a Sig part for a Sig gun. You won’t deal with fitting issues or reliability questions.
- ✅ Cost-Effective Upgrade: Getting the grip module and two 17-round magazines for this price is a solid deal compared to buying a complete new pistol.
- ✅ Improved Ergonomics: The XMACRO grip texture and shape are a noticeable upgrade for control.
- ✅ Simple Installation: If you can field-strip your P365, you can install this kit in minutes.
Cons:
- ❌ Requires Existing P365/XL: This is a conversion kit, not a complete firearm. You must start with a P365 or P365XL. If you don’t have one, check out our complete handguns.
- ❌ Your Old Magazines Become Obsolete: Your standard 10, 12, or 15-round magazines won’t fit the new XMACRO grip module.
- ❌ No Optic or Barrel Included: This kit focuses on the grip and mags. Your slide, barrel, and optic (if any) transfer over.
Who Should (and Shouldn’t) Order This Kit Online
Buy it if: You already own a P365 or P365XL and want maximum magazine capacity for concealed carry without buying a whole new gun. It’s also a great pick if you find the standard grip too small and want a fuller, more controllable grip texture.
Skip it if: You don’t already own a P365 FCU to put into it—this isn’t a complete pistol. Also, if you’re perfectly happy with 10-15 rounds and prioritize absolute minimal print above all else, the standard grip might serve you better. For those seeking a metal frame, our shop has other upgrade paths.
Got Questions? Let’s Address Common Concerns
Will this make my P365 too big to conceal?
The XMACRO grip is longer but not much wider. For most holsters and carry positions, the concealment difference is minimal. The capacity gain far outweighs a slight increase in grip length for most shooters.
Is the installation difficult?
Not at all. You simply push out the takedown lever pin, remove your FCU from the old grip module, and drop it into the XMACRO module. It’s a 2-minute job with no tools required beyond a punch for the pin.
Frequently Asked Questions
Where can I buy a P365-XMACRO kit online?
You can order the P365-XMACRO kit online right here at Imbertsmithersarms (imbertsmithersarms.com). We’re a Grand Forks, ND-based retailer with same-day shipping on in-stock items like this kit.
What exactly is included in the kit?
The kit includes the XMACRO polymer grip module and two 17-round steel magazines. It does not include a slide, barrel, or FCU (the “firearm” part of your P365).
Will my P365XL slide work on the XMACRO grip?
Yes, absolutely. The P365XL slide is a perfect match for the XMACRO grip module, creating what is essentially a P365-XMACRO Comp or similar model.
Can I use my old 12-round magazines with this grip?
No. The XMACRO grip module is designed specifically for the new 17-round magazines. Your older 10, 12, and 15-round magazines will not fit or seat properly.
Is the trigger different in the XMACRO kit?
The kit includes the grip module and magazines only. The trigger you feel will be the one from your existing FCU. Many P365 FCUs have the flat trigger, which transfers over.
Do I need a new holster for the XMACRO grip?
It depends on your current holster. Most holsters that accommodate the P365XL will work, as the slide and trigger guard are the same. Holsters that are closed at the muzzle (like some enigma shells) may need to be checked for the slightly longer grip.
Is this considered a firearm purchase?
No. This kit contains no serialized parts. It is an accessory and ships directly to your door with no FFL transfer required.
✅ In stock — ready to ship today
✅ Same-day shipping from Grand Forks, ND
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
If you’re ready to upgrade your carry capacity with a factory-direct solution, this P365-XMACRO kit is the practical choice. At $780.84, it’s a smart investment in your setup.
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About this review: Written from hands-on experience in the firearms industry to help you make an informed decision. We focus on practical details for hunters, shooters, and those living the concealed carry lifestyle. Last updated: April 2026






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