Smith & Wesson Model 639 Stainless Pistol Draw Bar Plunger and Spring Used 9mm 63910B Cylinder Stop Screw The Model 637 is part

The Model 637 is part of Smith & Wesson's J Frame Airweight family

Function: The cylinder stop engages notches in the cylinder to lock it in proper alignment with the barrel

Give us a call or shoot us an email for all your Smith and Wesson gun part needs

it was designed to handle the powerful

Smith & Wesson Model 639 Stainless Pistol Draw Bar Plunger and Spring Used 9mm 63910B Cylinder Stop Screw The Model 637 is partSmith & Wesson Model 639 Draw Bar Plunger and Spring Used OEM Part Factory original Smith & Wesson draw bar plunger and spring for the Model 639 stainless steel 9mm pistol. Part number 63910B. This used part is a genuine OEM component and a direct replacement for the factory draw bar plunger and spring in the 2nd generation S&W semi automatic pistol line. Part Details Part Number: 63910B Condition: Used Inspected for Functionality Caliber: 9mm