Sig Sauer P320 FCU | Gold Nitride | 8900160

The Sig Sauer P320 Custom Works Fire Control Unit (FCU) is a drop-in fire control module intended for use in Sig P320-compatible frames. This FCU is finished in Gold Nitride and features a flat, skeletonized trigger profile intended to refine trigger feel and appearance. For users mounting optics on a P320 platform, a compact red dot such as a Holosun 507C pairs well with the platform. Common applications include custom pistol builds and competition or range training.

Product Specifications

• The manufacturer is Sig Sauer.
• The part number is 8900160.
• The UPC is 798681633319.
• The ATF Type is listed as FRAME.
• The series is Custom Works Fire Control Unit.
• The finish is described as Gold Nitride.
• The trigger style is a Flat and is also described as skeletonized flat blade.
• This unit is compatible with Sig P320 parts.
• The product is listed as Striker Fired.
• The action type is Semi-Auto.
• The safety configuration is No Thumb Safety.
• The ATF manufacturer is Sig Sauer Inc..
• The ATF Model is recorded as None Marked.
• The package measures 7.0 x 4.6 x 2.0 inches (L x W x H).
• This item cannot be disassembled, per the provided attributes.

This Fire Control Unit is an upgrade-level component intended for builders and experienced P320 owners who want a finished FCU with a refined trigger profile and a distinctive Gold Nitride appearance. It is intended to be installed into compatible P320 frames and used as the serialized fire control component where permitted. The unit’s design and finish make it suitable for users focused on accuracy of controls, improved trigger feel, and a customized aesthetic on competition or range platforms.

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