The SureShell carrier system for the Kel-Tec KSG comprises a replacement anodized aluminum Picatinny optics rail which supports one or two machined shell carrier yokes. Small aluminum flanges on either side of the main rail can accept additional lengths of Picatinny rail to support weapon lights or targeting lasers (small rail not included). A pair of unique steel recoil blocks featuring angled set screws ensure the rail assembly is securely mounted to the shotgun. SureShell carriers for the Kel-Tec KSG feature four- or six-shell yokes, on the left side or right side or both sides. A replacement Picatinny rail without SureShell yokes is also available.