The Cimarron Frontier Single Action 5 1/2" .357/.38SP OM is a FRONTIER-series revolver that brings 1873 style aesthetics and Old Model authenticity to shooters who value historical accuracy and real-world performance, and it wears a color case hardened finish with walnut grips that look right at home on the range or in a collection. Chambered for both .357 Magnum and .38 Special, this six-shot single action delivers the power for hunting medium game and the shootability needed for cowboy action shooting and target work, while the 5.5-inch barrel offers a balanced sight radius for consistent hits at common hunting and competition distances. As a Cimarron Firearms piece, it follows the lineage of classic frontier revolvers in fit, feel, and mechanical simplicity, making it easy to maintain and reliable in field use; the robust construction and traditional controls also make it an engaging choice for collectors, historical reenactors, and those who enjoy deliberate single-action marksmanship. With clear ties to cowboy action shooting, Old West revolver collectors, and .357/.38 Special enthusiasts, this Frontier model reads well for search terms like Cimarron Frontier Single Action, 1873 style revolver, color case hardened finish, and walnut grips revolver.