A very popular revolver for its time, the model 1851 Navy revolver was adopted by both the U.S. and British military. Available in either steel or brass frame, this revolver received its name from the depiction on the cylinder of the Texas Navy's victory over the Mexican fleet in 1843. The 1851 Navy US Marshall is a .44 caliber revolver with a 5.5 barrel, walnut grip, and laser-engraved polished steel. 44 cal. 5.5 in. Polished Steel Walnut