Sig Sauer P365-XMACRO Caliber Exchange Kit 9mm, 3.1" Barrel, 17+1 Capacity, Optic Cut Slide, Polymer Frame, X-Ray 3 Sights, Black

The Sig Sauer P365-XMACRO Caliber Exchange Kit gives you a straightforward way to transform your existing P365 or P365X into a full-size P365-XMACRO platform without buying a whole new gun. This is the complete package: a compensated slide assembly with Nitron finish, a 3.1" barrel, factory X-Ray 3 day/night sights, the XMACRO grip module with Picatinny rail, and two 17-round magazines. If you already own a P365 and want the larger grip and capacity of the XMACRO without the price of a second pistol, this kit handles it in one box.

The XMACRO grip module is the star here—it features a true 1913 Picatinny accessory rail so you can mount lights, lasers, or other gear without compromise. The slide comes optic-ready, and those X-Ray 3 sights are Tritium-based, meaning they're usable in low light without batteries. Capacity jumps to 17+1, a meaningful increase for a gun that started as a deep-carry option. The polymer frame keeps weight down, and the whole system is built on Sig's proven P365 platform reliability.

One thing to note: the XMACRO grip module is not cut for a manual safety, so this is a striker-fired, finger-safety design. The kit also includes a removable sight plate if you decide to run an optic. Whether you're looking to expand your P365's capability or consolidate your carry and duty setups, this caliber exchange kit gives you serious gun for the money.

Key Features

• Complete compensated slide assembly with Nitron finish—ready to install on your P365 frame
• Integrated 3.1" barrel with gas ports for recoil reduction
• Optic cut slide for mounting reflex sights
• X-Ray 3 Tritium day/night sights—3-dot design, low-light capable
• XMACRO grip module with full 1913 Picatinny rail for lights and accessories
• Two 17-round steel magazines—double your original capacity
• Works with P365, P365X, and P365XL platforms

Specifications

Frequently Asked Questions

Will this kit work on my P365 or P365X?

Yes. This exchange kit is designed to work on the P365, P365X, and P365XL. You keep your existing frame and install the new slide and grip module to complete the conversion to XMACRO specs.

Does the XMACRO grip module have a manual safety option?

No. The XMACRO grip module included in this kit is not cut to accommodate a manual safety. It operates as a striker-fired design with a trigger safety only.

Can I mount an optic on the slide?

Yes. The slide is optic-cut and includes a removable sight plate, so you can mount your choice of reflex sight. The factory X-Ray 3 sights also coexist with most common optic footprints.

What sights come with the kit?

The kit includes Sig Sauer X-Ray 3 day/night sights with a 3-dot Tritium system. These are fixed sights that don't require batteries and perform in low-light conditions.