Sleek, slimline appearance Strong, rigid, non-glare, aluminum backing plate Durable, flexible, weater-resistant, synthetic rubber shell carrier with secure shell retention Reduced size and streamlined shape reduce chances of snagging For use with 12-gauge Remington 870/1100/11-87, Mossberg 500-590/930, and Benelli M2/M4 shotguns The Sidesaddle line has gained a large following because of their convenient placement of shells right where you need them for a fast reload. We have now taken the Sidesaddle to the next level with our slimline version. The Slimline sidesaddle utilizes a non-glare, anodized aluminum backing plate material similar to our traditional Sidesaddle; however we have contoured the plate so that it takes up less space on the receiver and has fewer areas that could potentially snag. Additionally we have changed the shell carrier itself to our proprietary flexible synthetic rubber material, which offers durability and weather resistance as well as secure shell retention. Like the backing plate, the shell carrier also is smaller in size than our traditional sidesaddle, adding to its sleek appearance. For use with 12-gauge Remington 870/1100/11-87, Mossberg 500-590/930, and Benelli M2/M4 shotguns.