Cimarron SA Bad Boy 10mm Auto 8" 6-Shot SAO Revolver - Extra .38/40 Cylinder

The Cimarron SA Bad Boy is a modern classic single-action revolver chambered in 10mm Auto, pairing a long 8" octagonal barrel with a traditional Pre-War Colt 1860-style frame. Introduced by Cimarron in 2017, the Bad Boy revives the look and feel of the original Single Action Army while giving it the punch of a modern magnum cartridge.

Built around a traditional single-action mechanism, the Bad Boy holds 6 rounds of 10mm Auto in its cylinder and tips the scales at 50 ounces. The Pre-War frame is paired with a flat top and adjustable sights, giving the revolver a clean sight picture that suits both cowboy-action shooting and field use. A wood Army grip rounds out the traditional silhouette.

This configuration ships with two cylinders: the installed 10mm Auto cylinder and a spare .38-40 cylinder, letting the shooter swap between calibers on the same frame and barrel. The result is a versatile long-barrel single-action revolver equally at home on the hunting range, in cowboy-action competition, or in a classic revolver collection.

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