Description UPDATE: Full Service Accurizing custom work done by Elite Ammunition, check them out online for more details. FN Five Seven chambered in 5.7x28mm with a 4.8″ barrel. Black polymer frame with MIL-STD-1913 accessories rail, textured grips, backstrap, and trigger guard. Serrated trigger, reversable push button magazine release, and ambidextrous frame mounted safety selector. The magazine disconnect safety has been deleted. Aftermarket flat faced trigger with light trigger pull. Dorin Technologies DT-CAOS slide with aggressive front and rear slide serrations. The slide is cut for optics with a CAOS-11 plate compatible with the Trijicon RMR footprint and can accept Trijicon RMR, Trijicon SRO, Holosun 407C, Holosun 507C, Holosun 508T, and more. Adjustable green fiber optic rear sight and fixed red fiber optic front blade. Comes in its factory box with factory paperwork and cable lock. MISSING its magazine. Condition: Excellent with very little handling or operational wear. Clean rifled bore. Barrel Length: 4.8″ Serial: 386366849 Manufacturer: FN Dorin Tech Caliber: 5.7x28mm Model: Five Seven DT-Caos Book# 03536