Robert Adams was a 19th-century British gunsmith who patented the first successful double-action revolver in 1851. His revolvers were used during the Crimean War, the Indian Mutiny, the American Civil War, and the Anglo-Zulu War.

The Beaumont–Adams revolver is a black powder, double-action, percussion revolver. Originally adopted by the British Army in .442 calibre in 1856, it was replaced in British service in 1880 by the .476 calibre Enfield Mk I revolver.