05071B000 Smith & Wesson J K L N Frame All Models Blue Thumb Piece Nut Part

05071B000 Smith & Wesson  J,K,L & N Frames All Models Double Action Revolver Blue Thumb Piece Nut Fits Models 10, 12 to 19, 24, 25, 27, 28, 29, 31, 32, 34, 36, 37, 38, 42, 57, 325PD, 329PD, 340PD, 342PD, 351PD, 360PD, 386PD, 431PD, 432PD, 442, 49337PD, 581, 586 We sell Smith and Wesson Pistol and Revolver used, new old stock, Refurbished & new Parts. Shoot us an email or give us a call about all your S&W gun needs-USA Guns And gear 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 contact us and we will need a little more info on your revolver. A revolver is a repeating handgun that has a revolving cylinder containing multiple chambers and at least one bar