The Sidesaddle utilizes a non-glare, anodized aluminum backing plate material similar to the 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. 12 Gauge Only. Order TacStar’s Slimline SideSaddle to improve reload capabilities and efficiencies for shotgun receivers.