The Rhino .40 holds six rounds, and each new revolver comes with five moon clips. It is available in barrel lengths of 2, 4, 5 and 6 inches. The four-inch model weighs in at 25 ounces. The Rhino's frame is made from Ergal, a high-strength aluminum alloy, while the cylinder, barrel and internal parts are manufactured from 4140 alloy steel. Blued metal finish and composite rubber or wood stocks.