THE SIG SAUER P365 CUSTOM WORKS FIRE CONTROL UNIT is the serialized core of the modular P365 handgun system, giving shooters a factory SIG Sauer foundation for building a personalized P365 around their preferred grip module, slide, barrel, magazine, optic, and accessories.
This P365 FCU features an exclusive titanium nitride frame and trigger, a gold TiN PVD finish, stainless steel FCU construction, striker-fired operation, and a flat trigger. SIG Sauer lists this FCU as compatible with all 9mm and .380 Auto P365 accessories.
Because the Fire Control Unit is the serialized firearm component, this item must ship to a Federal Firearms License holder for transfer. This is not a complete pistol and does not include a slide, barrel, grip module, magazine, optic, or other build components.
Why the P365 FCU Matters:
The P365 Custom Works FCU gives customers a factory SIG Sauer starting point for a custom P365 build. Instead of buying a complete pistol and replacing major components, the FCU allows the user to build around the serialized chassis and choose the compatible P365 parts that best fit their carry, range, or defensive setup.
Important Compatibility Note:
SIG Sauer lists this FCU as compatible with all 9mm and .380 Auto P365 accessories. Always confirm compatibility with your intended grip module, slide, barrel, magazine, optic, and accessory configuration before ordering.
Ideal Applications:
- Custom P365 Builds: Serialized factory FCU foundation for personalized configurations
- Carry Optimization: Build around preferred grip size, slide length, sights, optic setup, and magazine capacity
- Modular Platform Use: Designed for SIG Sauer’s modular P365 ecosystem
Shop more SIG Sauer firearms, FCUs, and accessories at Huckleberry Arms:
Handguns |
SIG Sauer Fire Control Units |
SIG Sauer