Physical Dimensions: L. 38 3/8 in. (97.5 cm); Cal. .50 in. (12.7 mm); L. of barrel 24 7/16 in. (62.1 cm); L. of lockplate 5 7/8 in. (14.9 cm); L. of plug 2 1/2 in. (63.5 mm); Diam. near muzzle 13/16 in. (20.6 mm); Diam. near breech 1 in. (25.4 mm); Wt. 4 lb. 15 oz. (2240 g)