Shadow Systems Item Number: SS-3012Striker Fired Semi Auto Pistol9mm Luger17+1 Rounds4" 416R Stainless Steel Spiral Fluted BarrelMatch Grade Barrel with Black Nitride Finish17-4 Stainless Steel Slide Black Nitride FinishMulti Optic Cut SlideFront, Rear and Topside Directional Slide SerrationsWeight Optimizing Window CutsGreen Tritium Front SightBlack Serrated Rear SightAllows 1/3 Co-Witness with Most OpticsAluminum Flat-Faced Trigger with 4.5-5.0 lbs Trigger PullFull Size Polymer Frame with Accessory RailAggressive Grip TextureExtended Upswept BeavertailRecoil Control LedgeInterchangeable BackstrapsUndercut Trigger GuardBlack FrameOverall Length: 7-1/4"Height: 5-1/4"Weight: 22.4 oz