The P365-XMACRO is a complete, serialized FCU (Fire Control Unit) for building your SIG P365-XMACRO pistol. This is the core component that requires an FFL transfer. Since we started stocking these in Q1 2025, we’ve sold over 125 units—it’s become a steady seller for builders who want a reliable, drop-in-ready FCU. It’s for the builder who values a no-hassle fit and a proven design.
Stand-Out Features
- Drop-In Compatibility: Our staff has tested this FCU in multiple P365-XMACRO frames. No fitting or modification was required for a proper fit.
- Complete Serialized FCU: This is the federally regulated part. It includes the trigger, sear, and housing—ready for your frame, slide, and barrel.
- Consistent Performance: Built to SIG’s specifications for reliable ignition and a clean, predictable trigger pull.
- Foundation for Customization: Start your XMACRO build with the correct, factory-original fire control unit.
Technical Data
| Model | P365-XMACRO Fire Control Unit (FCU) |
| Caliber | 9mm |
| Weight (measured) | 1.3 oz |
| Finish | Black Nitron |
| Trigger | Factory SIG Flat Trigger |
| Compatibility | SIG P365-XMACRO frames & slides |
| Part Type | Serialized, requires FFL transfer |
Your Questions Answered
Is this a complete pistol?
No. This is the serialized Fire Control Unit (FCU), which is the regulated firearm component. To build a complete, functional pistol, you will need to source a compatible P365-XMACRO frame (grip module), slide, barrel, and recoil spring assembly separately.
What is required to purchase this?
This item is a firearm and requires a Federal Firearms License (FFL) transfer. At checkout, you must select a licensed FFL dealer in your area to receive the shipment. You will complete the standard Form 4473 and background check with that dealer before taking possession.
Will this fit a standard P365 frame?
No. The P365-XMACRO FCU is designed specifically for the larger P365-XMACRO platform frames and slides. It is not compatible with the smaller, original P365 or P365XL frames due to dimensional differences in the FCU housing.
✅ Plain brown box — no markings
✅ Not happy? Return within 30 days.
✅ Checkout secured with SSL encryption
✅ Domestic shipping — no customs
Reviews
There are no reviews yet.