Inside the Ultimate Sig Sauer P365XL Custom Build for Everyday Carry
Posted by Cerus Gear
The Sig Sauer P365 series has quickly become one of the top choices for concealed carry and home defense. It delivers up to 17 rounds of 9mm in a slim, compact frame offering the performance of a full-size pistol in a much more carry-friendly package.
In this article, we break down a fully customized P365XL build by one of our team members and explain every accessory choice, from grip module to optic to holster.
Whether you're planning your own setup or just curious about optimizing your carry gun, this guide is for you.
Why the Sig Sauer P365XL Is a Top Choice for Concealed Carry
The P365XL strikes an ideal balance between firepower and portability. Its slim profile makes it comfortable for everyday carry (EDC), while its higher capacity allows it to go head-to-head with many full-sized pistols.
For those seeking a reliable handgun that doesn't sacrifice comfort or performance, the P365XL stands out.
Building the P365XL from Factory Parts
This custom build starts with factory parts available directly from Sig Sauer. It features the standard P365XL barrel and slide, already cut to mount a red dot optic. That means you can start your custom journey with OEM reliability and upgrade as you go.
Upgrading the Grip: DH3 Module by Daniel Horner
One of the key enhancements in this build is the P365XL DH3 Grip Module, developed by professional competitive shooter Daniel Horner. Its aggressive texture offers enhanced recoil control and a confident grip, especially useful in high-pressure scenarios.
However, this added texture can be a bit harsh for daily concealed carry, especially against bare skin. The beaver tail may also dig into the body when bending, so comfort vs. control is a personal decision. Still, the P365XL remains more comfortable than a full-size pistol in nearly every scenario.
Holosun 407k: Compact Red Dot Built for EDC
This pistol features the Holosun 407k, a red dot sight designed specifically for compact frames like the P365XL. It’s lightweight, rugged, and aligns naturally with your eye, making target acquisition faster and eliminating the need to align front and rear sights.
Red dots are becoming the new standard for modern EDC pistols, and the 407k is a prime example of why: it’s reliable, easy to use, and boosts confidence under stress.
Choosing the Right Holster: BlackArch Entrada
To complete the setup, this P365XL is holstered in the Entrada Holster by BlackArch a reliable, comfortable option for daily carry. It ships with an extra mag carrier and features flexible materials that adapt well to your body, improving concealment and all-day wearability.
And yes, they’re a trusted U.S.-based brand we personally know and recommend.
Future Upgrades: EPS Carry and Tactical Light Setup
There are a few upgrades the owner of this build would still like to make. First, swapping the 407k for the new Holosun EPS Carry, which features a closed emitter for better protection against moisture and debris.
Another high-impact addition would be the TLR-7sub weapon light, paired with the Tactical Development ProLedge. This not only adds low-light visibility but also enhances recoil control, making the gun even more effective for defensive use.
We highly recommend checking out Tactical Development’s line of innovative P365 accessories—they're constantly pushing the boundaries for what’s possible with concealed carry builds.
Build Your Own P365XL and Save 25%
Inspired to build your own P365XL? Start with the right parts, optics, and holster—and make it truly yours.
Use code 365 at checkout to get 25% off your P365, P365XL, or P365X-Macro mat and keep one of the best EDC pistols ready for any situation.
Have questions? We’re here to help. Reach out anytime and let’s get your custom carry build started.
Conclusion
Whether you're just starting your journey with the Sig Sauer P365XL or looking to fine-tune your current setup, the right upgrades can take your carry gun to the next level. From improved grip control to faster target acquisition and better concealment, each accessory adds value. With the right combination of reliability, performance, and personal fit, your P365XL becomes more than just a pistol—it becomes your perfect EDC companion.
Want more tips on optimizing your EDC gear?
Explore our blog for guides on red dots, holsters, and grip upgrades.
Frequently Asked Questions
Is the Sig Sauer P365XL good for beginners?
Yes. Its manageable recoil, slim profile, and high capacity make it an excellent option for new shooters looking for a reliable EDC firearm.
Can I mount any red dot on the P365XL?
The factory slide is optic-ready, but not all red dots will fit. The Holosun 407k and EPS Carry are excellent compact options that fit without additional plates.
Is the DH3 grip module worth it?
If you prioritize control and performance under pressure, the DH3 grip is a great upgrade. For maximum comfort, especially with IWB carry, consider how it feels against your body before committing.
What’s the benefit of a closed emitter like the EPS Carry?
Closed emitters are more protected from water, lint, and debris, making them more reliable in rugged or unpredictable environments.