Sig Sauer’s P365 Custom Works Fire Control Unit delivers an unmatched level of personalization for sub compact handguns. This FCU allows the user to build a truly custom handgun from the ground up, with virtually unlimited choices for grip modules, magazines, slides, sights, barrels, and much more. The P365 Custom Works FCU features an exclusive titanium nitride coating on the frame and trigger, giving the entire assembly optimal resistance to corrosion and the elements. Features: Allows user to build a truly custom handgunCompatible with all 9mm P365 accessoriesTitanium Nitride Coating Sig Sauer P365 9/380 Custom Works Fire Control Unit w/Gold Flat Blade Trigger 8900164