Description
The SIG P320 Fire Control Unit is the heart of your modular P320 platform, serving as the serialized component that houses the trigger assembly and firing mechanism. This authentic SIG fire control unit comes finished in black titanium nitride, offering superior corrosion resistance and durability for serious shooters and P320 platform builders.
Key Specifications
Engineered by SIG Sauer, this fire control unit is compatible with all P320 platforms and accepts 9mm, .40 S&W, and .357 SIG caliber conversion kits. The unit features a skeletonized flat blade trigger design that delivers a crisp, predictable break. The titanium nitride black finish provides excellent protection against wear and environmental corrosion, ensuring your fire control unit maintains its appearance and function for years of use. This is the OEM fire control unit (part number 8900161) that gives you the flexibility to build custom P320 configurations.
Performance & Reliability
As the serialized component of your P320, the fire control unit is manufactured to SIG Sauer’s exacting standards. The skeletonized trigger design reduces mass while maintaining structural integrity, contributing to improved handling characteristics. The P320 fire control unit’s modular design allows you to swap caliber-specific slides and grip modules while maintaining the same proven fire control group, making it an economical choice for P320 platform enthusiasts.
Intended Use
This fire control unit is ideal for competitive shooters, tactical professionals, and P320 platform builders looking to customize their firearms. Whether you’re building a complete P320 from components or upgrading an existing platform, the fire control unit serves as the foundation. The black titanium nitride finish makes it suitable for duty, training, or competition use in any environment.
Why Choose CaliperDepot
CaliperDepot is your trusted source for authentic SIG Sauer fire control units and P320 platform components. We stock genuine OEM parts to ensure compatibility and reliability. With our commitment to customer service and competitive pricing, you’ll get the exact fire control unit you need delivered quickly and securely.
Build your perfect P320 platform with this genuine SIG P320 Fire Control Unit. Order your fire control unit today and experience the reliability that professionals trust.







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