4138A Smith & Wesson Pistol Model 41 .22 Long GUARD TRIGGER and PIN (blue Steel) Model 17 or keeping spares on the

or keeping spares on the bench

Professional installation by a qualified gunsmith is recommended for this safety-critical component

making it easier to achieve proper sight alignment in low light conditions or when shooting against dark backgrounds

Replace a damaged or worn barrel on your Model 640 Centennial with this factory OEM 2" barrel

4138A Smith & Wesson Pistol Model 41 .22 Long GUARD TRIGGER and PIN (blue Steel) Model 17 or keeping spares on thePart# 4138A Smith & Wesson Pistol Model 41 . 22 Long Rifle GUARD TRIGGER and PIN (Blue Steel) 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