SERIAL NUMBER 643-78458 Notes: Caliber: 5.7 x 28 mm Capacity: 20+1 rounds Action Type: Single-action internal hammer-fired (Secure Action) Barrel Length: 4.94 inches Overall Length: 8.65 inches Height: 5.6 inches Width: 1.2 inches Weight: 24.5 oz (unloaded) Slide Material: Alloy steel with a durable Black Nitride finish Frame: High-performance, glass-filled nylon Barrel: Alloy steel, black nitride finish (1:9" RH twist) Sights: Windage and elevation adjustable rear sight with a fiber optic front sight Optics Ready: Features a drilled and tapped slide to accept optic adapter plates Safety: Ambidextrous 1911-style manual thumb safety and a bladed trigger safety Rail: Built-in Picatinny rail (5 slots) for lights and accessories CONDITION: DOES HAVE SCRATCHES/SCUFFS ON THE BARREL. PLEASE LOOK CLOSELY AT THE PHOTOS.