The Cimarron Thunderball 9mm 3.5" 6RD NK from Cimarron Firearms is a Thunderball-series single action revolver that blends classic pre-war styling with the practicality of a 9mm Luger platform, making it an excellent choice for collectors, range shooters, and those seeking a compact defensive wheelgun. With a 3.5-inch barrel and a nickel barrel finish wrapped around a nickel-colored frame, the Thunderball delivers manageable sight radius and a balance of sightability and concealability that works well on the line or at close distances; its fixed sights and standard hammer/trigger setup make follow-up shots intuitive for shooters familiar with single-action timing. The birdshead wood grips sit comfortably in the hand and help tame recoil from the six-round cylinder, while the 41-ounce weight gives the firearm steadiness for controlled shooting sessions. As a six-shot 9mm single action revolver in the Thunderball model series, it offers an approachable transition for those coming from semiauto 9mm pistols who want wheelgun reliability. FFL required for purchase; Cimarron Thunderball revolver, Cimarron Thunderball 3.5", Cimarron Thunderball nickel finish and Cimarron Thunderball birdshead grips are standout search terms for this model.