The KRISS Vector SDP is the ideal choice for personal protection and home defense. The short barrel and quick detach sling swivel make transportation simple, and it can be stowed away inconspicuously. Like all KRISS Vector firearms, the SDP is fed with full size Glock magazines, offering cross compatibility of ammunition for a secondary or back up hand gun. At the heart of the Vector SDP is the Super V System, a nonlinear, multilink, blowback system designed to redirect recoil energy down. The Super V System in conjunction with the low bore axis reduce felt recoil and muzzle climb. Takes Glock magazines.