KRISS Vector SDP (Special Duty Pistol) in 10mm — the pistol-configuration Vector with 5.5-inch barrel and no stock, legal as a pistol with brace attachment. Super V system in compact form. Type: Pistol Action: Semi-Auto Caliber: 10mm Auto Capacity: 13 Year introduced: 2015, United States Weight: 5.6 oz Overall length: 18.5" Status: Active Intended use: Home Defense, Competition