Sig Sauer P365 Fire Control Unit 9mm Gold Nitride

Sig Sauer P365 Fire Control Unit

The P365 Fire Control Unit represents Sig Sauer's commitment to modular pistol design. This FCU—the regulated serialized component—unlocks the full potential of the P365 platform's customization ecosystem.

What You Get

This is the fire control unit only. It includes:

• Gold Nitride Finish on the frame for durability and corrosion resistance
• Titanium Nitride Trigger with flat-face design for clean, predictable breaks
• Serialized Frame that serves as your pistol's legal foundation
• 9mm Luger/380 ACP Compatibility across the P365 accessory lineup

Customization Without Limits

Once you have this FCU, the P365 platform opens up thousands of configuration possibilities. Swap grip modules to fit your hand. Choose from multiple slide profiles and finishes. Add custom barrels, optics mounts, and magazines. Build a carry gun that's uniquely yours.

Important Note

This is a regulated firearm component. Federal law requires an FFL transfer and background check. It is not a complete firearm and cannot function as a pistol without additional parts.

The Platform Advantage

The modular P365 design means you're not locked into one configuration. As your needs evolve—whether you're adjusting carry method, adding optics, or refining ergonomics—your FCU remains the foundation of your customized platform.