North American Arms The Earl, Single Action Only, Revolver, 22 WMR, 4 Barrel, Matte Finish, Stainless Steel, Silver, Wood Grips, Fixed Sights, 5 Rounds NAA-1860-4 The Earl is a five-shot, single action, 1860's- styled mini- revolver chambered in 22 magnum. Named after the NAA gunsmith who originally developed the product, with its faux loading lever (which secures the cylinder pin), The Earl resembles a 150-year-old percussion revolver then common in the Old West. With its heavy octagonal barrel, top strap channel and bead front sight, The Earl could become your favorite plinker.