Operating System: Closed bolt delayed-blowback patented KSV System – Caliber: 40SW – Overall Length: Extended: 38.5 in / 978 mm Collapsed: 35.25 in / 895 mm – Overall Height: 6.8 in / 175 mm – Barrel Length: 16 in / 406 mm – Weight (unloaded): 7.8 lbs / 3.5 kg – Frame Material: Advanced Metal Components Advanced Polymer Composite – Magazine: 15 rd