Smith & Wesson K Frame Model 12 Bolt Spring & Plunger .38 Special - Part# 1245B k29n This firing pin is for

This firing pin is for centerfire calibers only (

37184Z Smith & Wesson Revolver J Model 37 (Airweight)

Barrel-to-frame fitting and alignment

new style construction

Smith & Wesson K Frame Model 12 Bolt Spring & Plunger .38 Special - Part# 1245B k29n This firing pin is forSmith & Wesson K Frame Model 12 Bolt Spring & Plunger This genuine Smith & Wesson bolt spring and plunger is a direct fit used replacement for the K Frame Model 12 Airweight revolver chambered in . 38 Special. Keep your cylinder bolt functioning reliably with this factory spec old style part. Part Number: 1245B Fits: Smith & Wesson K Frame Model 12 Airweight Caliber: . 38 Special Style: Old Style Condition: Used may require fitting by a qualified