This aftermarket Remington 870/1100/1187 side saddle shell holder for a tactical shotguns hold six 12 gauge rounds. This receiver shell holder puts additional fire power quickly within reach on your Remington shotgun. Base plate is made from hard anodized aluminum that attaches to the side of the receiver using the existing pin/screw holes. All mounting hardware included no permanent alterations or gun smith required. Back polymer carrier has quick detach design Perfect for home defence shotguns. Limited lifetime warranty. Note Fits most 870 models 1100 and 1187 shotgun. Does not work with 870 express turkey and magnum models due to longer forend slide action.