IB179 Smith and Wesson I Frame Pre Model 30 & 31 Thumb Piece & Nut Used .32 Long Mac Daddy Survival Kit The mainspring (also called the

The mainspring (also called the hammer spring) provides the force that drives the hammer forward to strike the firing pin

Genuine Smith & Wesson Extractor Rod for 2

Improved Modified

Factory replacement parts are manufactured to the same specifications

Early 4th Change Revolver Pistol Part

IB179 Smith and Wesson I Frame Pre Model 30 & 31 Thumb Piece & Nut Used .32 Long Mac Daddy Survival Kit The mainspring (also called theIB179 Smith and Wesson I Frame Pre Model 30 & 31 Thumb Piece & Nut Used . 32 Long Revolver Pistol Gun Part. 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 we can possibly still find the part