Description MOSSBERG 590S 12 GA PUMP 18.5″ SPECIFICATIONS Gauge 12 Capacity 9 1; 6 1; 5 1 Chamber 3″ Chamber with 1.75″ Short Shell, 2.75″, and 3″ Cycling Capability Barrel Length 18.5″ Sight/Base Bead Choke Cylinder Bore LOP Type Fixed LOP 13.87″ Barrel Finish Matte Blue Stock Finish Synthetic (Black) Weight 6.75 Length 39.5″ UPC 015813516037 MOSSBERG 590S 12 GA PUMP 18.5″ Shipping on the MOSSBERG 590S 12 GA PUMP 18.5″  includes insurance and shipping/ handling fees