Atlas Gunworks Athena Caliber: 9mm Competition or Duty Ready! Comes standard with removable Iron Sight Plate Options to add Optic Plates and Red Dot Sights Tri-topped and Lightened Slide Cut to 4.6″ 4.6″ Full Dustcover Steel Frame with Tactical Rail Bull Barrel Perfect Zero Engineering (sight returns to perfect zero with correct ammunition and medium-firm grip pressure)