The frame has an integrated Picatinny rail. A manual safety and slide release lever are optimally positioned above the thumb for easy manipulation. A refined element of the G3 is the 6-lb. trigger, designed with a smooth take-up and a surprisingly crisp, clean break exceeding that of typical striker-fired pistol trigger performance. A short reset promotes quick, controlled follow-up shots. Basic Specs Capacity: 17 Rounds Action Type: Single Action with Restrike Firing System: Striker Front Sight: Fixed White Dot Steel Rear Sight: Serrated Steel Drift Adjustable Measurements Frame Size: Full Size Barrel Length: 4.00 in. Overall Length: 7.28 in. Overall Height: 5.20 in. Overall Width: 1.20 in. Weight: 24.83 oz Materials Slide Material: Stainless Steel Frame Material: Polymer Barrel Material: Stainless Steel Caliber 9mm Luger Safety Loaded Chamber Indicator Manual Safety Striker Block Trigger Safety Finishes Slide Finish: Matte Stainless Frame Finish: Black Barrel Finish: Matte Stainless Features Picatinny Rail Re-Strike Capability Magazines Included 2