K727 Smith & Wesson Used K Frame Model 17-8 22LR New Style Thumbpiece & Nut k1905u Both cylinder stop and spring

Both cylinder stop and spring included

Critical component that secures the cylinder to the crane assembly

K807 Smith & Wesson Used K Frame Model 16

Function & Compatibility

Comes with hand

K727 Smith & Wesson Used K Frame Model 17-8 22LR New Style Thumbpiece & Nut k1905u Both cylinder stop and springK727 Smith & Wesson Used K Frame Model 17 8 22LR New Style Thumbpiece & Nut Used Gun Parts and Accessories. Cleaned, Inspected, and Guaranteed! Please call or email with any questions! 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