North American Arms 1860 Earl 22 Long Rifle 4in Stainless Revolver - 5 Rounds -As with every NAA Mini-Revolver, the hammer need not rest on an empty chamber. Using the original half-way notch cylinder, the hammer may rest safely and securely without chance of accidental discharge. Their .22 Magnum can be used with all popular .22 Magnum ammunition, including .22 Magnum shot shells. 1860 Replica Gun Sights: Front Bead Barrel: 4in Weight: 8.3 oz Caliber: 22 LR / .22 WMR