SIG SAUER P365 Fire Control Unit (Gold) – Custom Core of the P365 Platform

The SIG SAUER P365 Fire Control Unit (FCU) is the serialized, modular core of the P365 system, allowing users to build or customize their pistol with maximum flexibility. As part of SIG’s Custom Works lineup, this version stands out with a premium gold finish and enhanced internal components.

Designed for compatibility with P365 9mm and .380 platforms, the FCU enables users to swap frames, slides, and calibers while retaining the same serialized component—making it the foundation of the P365’s modular design.

The unit features a skeletonized flat blade trigger, offering a crisp, modern feel with improved control and trigger consistency. Its compact and lightweight design (0.6 lbs. shipping weight) makes it easy to integrate into custom builds.

This model is also California roster compliant, making it accessible in restricted markets.

Key Features:

Manufacturer: SIG SAUER
Model: P365 Fire Control Unit
Series: P365 Series
Type: Fire Control Unit
Compatibility: P365 (9mm / .380)
Finish: Gold (Custom Works)
Trigger: Skeletonized Flat Blade
Modular Platform: Yes
Shipping Weight: 0.6 lbs.
Compliance: California Roster Approved

A perfect choice for enthusiasts looking to build or upgrade a P365 with a premium, customizable foundation—combining modularity, performance, and standout aesthetics.

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