Kriss KV45-CMCBLK20: The KRISS Vector CRB is the most widely accessible model, with a rifle length barrel the Vector CRB is 47 state compliant. The Vector CRB is the ideal choice for recreational use and competition in pistol caliber carbine divisions. Like all KRISS Vector firearms, the CRB is fed with full size GlockA(R) magazines, allowing for a wide range of large capacity options. At the heart of the Vector CRB 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. FEATURES: Super V Recoil Mitigation System GlockA(R) magazine compatibility Low bore axis Low profile flip sights Full length picatinny top rail 6 position adjustable stock