KRISS USA Vector Sdp G2 .45 ACP 5.5" Rifle

The Kriss USA Vector SDP G2 45 ACP 5.5" Combat Grey Receiver is a modern sporting rifle platform engineered for shooters who demand a flat-shooting, low-recoil system in a large-bore caliber. Built on the battle-proven Kriss Vector platform, this firearm delivers significantly reduced muzzle rise and felt recoil through Kriss's proprietary hydraulic-damped recoil mitigation system—a distinct advantage in tactical training, home defense, and sport shooting applications where rapid follow-up accuracy matters.

The 5.5-inch barrel strikes a balance between velocity and maneuverability, while the combat grey polymer frame and stock provide corrosion resistance and lightweight handling. Paired with low-profile flip sights for co-witness capability, this receiver accepts standard 45 ACP ammunition and ships with a 30-round detachable magazine plus one round in the chamber, giving you 31 rounds of immediate firepower. The polymer construction and combat grey finish maintain durability in demanding environments without adding unnecessary weight—the entire unit weighs just over 1 pound as a receiver component, integrating seamlessly into modern tactical configurations.

Law enforcement, military trainers, and civilian shooters benefit most from the Vector platform's recoil management, especially in higher-round-count training scenarios where operator fatigue directly impacts accuracy. The low-profile flip sights allow users to co-mount optics or run the gun iron-sight ready out of the box. As a registered firearm requiring Federal Firearms License transfer, this model is ideal for shooters seeking a 45 ACP platform with modern ergonomics and proven reliability.