Sig Sauer FCU P320 Fire Control Unit - Black Titanium Nitride Finish - Flat Trigger

Sig Sauer FCU P320 Fire Control Unit - Black Titanium Nitride Finish - Flat Trigger

Unlock the full potential of your P320 platform with the SIG Sauer Custom Works Fire Control Unit (FCU)—a premium, serialized core built for shooters who demand complete customization and top‑tier performance. Finished in a striking Black Titanium Nitride, this exclusive FCU elevates both aesthetics and function, giving you the foundation to build a truly one‑of‑a‑kind P320.

At the heart of this FCU is SIG’s precision‑engineered, skeletonized flat‑blade trigger, also coated in Titanium Nitride for enhanced durability, smoother operation, and a crisp, consistent break. Fully compatible with all post‑upgrade 9mm, .40 S&W, and .357 SIG P320 components, this FCU allows you to pair your preferred slides, barrels, grip modules, and optics to create a pistol tailored exactly to your needs.

Whether you're building a competition gun, a duty‑ready setup, or a personalized everyday‑carry configuration, the Custom Works FCU gives you the freedom to design your P320 from the inside out. With its exclusive finish, custom serial number, and unmatched modularity, this FCU is the ultimate starting point for any serious P320 builder.

Exclusive Titanium Nitride Frame
Premium Black TiN finish enhances durability, corrosion resistance, and visual appeal.

Titanium Nitride Skeletonized Trigger
Flat‑blade design offers a crisp break, reduced weight, and smoother trigger pull.

Fully Modular Platform
Compatible with all post‑upgrade P320 components in 9mm, .40 S&W, and .357 SIG.

Custom Serial Number
Unique “FCU######” identifier exclusive to SIG Custom Works builds.

Ultimate P320 Customization
Serves as the serialized core for building competition, carry, or duty‑grade configurations.

Factory‑Built Precision
Manufactured by SIG Sauer for optimal reliability, safety, and performance.

Specifications

• Model Compatibility: SIG Sauer P320 (Post‑Upgrade)
• Caliber Compatibility: 9mm / .40 S&W / .357 SIG
• Finish: Black Titanium Nitride
• Trigger Type: Skeletonized Flat‑Blade, Titanium Nitride Coated
• Construction: SIG Sauer Custom Works FCU