66185CC Smith & Wesson K Frame Model 66 .357 Magnum Trigger .310" Used Part 4505 military cleaning rod for the

military cleaning rod for the Smith & Wesson Victory Model and Military & Police (Pre-Model 10) revolvers

this exposed hammer is precision-machined for reliable ignition and smooth operation

240" Grooved Trigger Case Hardened

38 Special Used Old Style

Enhanced control – Textured surface improves weapon retention in all conditions

66185CC Smith & Wesson K Frame Model 66 .357 Magnum Trigger .310" Used Part 4505 military cleaning rod for the66185CC Smith & Wesson K Frame Model 66 . 357 Magnum Trigger . 310" Wide Spur MIM Used Part New Style How to determine the model number of your Smith & Wesson Revolver. Swing out the cylinder , check behind the yoke on the frame for a MODEL NUMBER. Model numbers began in 1957 58. So if there is no model number then your revolver may be older than 1957 58. In this case we can possibly still find the part you need with the serial # . If this is the case