6623 Smith & Wesson K Frame Model 66 Pinned 4" Barrel .357 Magnum n25-5u Function: The trigger controls the

Function: The trigger controls the hammer release in both single-action (hammer cocked manually) and double-action (trigger pull cocks and releases hammer) operation

This factory replacement restores proper spring tension and reliable ignition to factory specification

Features detailed circular checkering for a secure hold and includes installation screw

Part Number: 239620000

Factory specifications and tolerances

6623 Smith & Wesson K Frame Model 66 Pinned 4" Barrel .357 Magnum n25-5u Function: The trigger controls thePart# 6623 Smith & Wesson Revolver K Frame Model 66 . 357 Magnum Pinned 4" Barrel Stainless Steel Used Part (Old Style) We sell Smith & Wesson pistol and revolver used, new & new old stock refurbished & new parts. Shoot us an email or give us for 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