Smith & Wesson Model 639 Stainless Pistol Magazine Catch Nut Used 9mm 63935 Gun Oil Material: Black nylon

Material: Black nylon

and the third indicates trigger/safety configuration

Compatible Model (2" Barrel Only):

Show your S&W pride on the road with these factory-original Smith & Wesson branded aluminum license plate bolts

Stainless Steel   Part# 629181

Smith & Wesson Model 639 Stainless Pistol Magazine Catch Nut Used 9mm 63935 Gun Oil Material: Black nylonSmith & Wesson Model 639 Magazine Catch Nut Used OEM Part Factory original Smith & Wesson magazine catch nut for the Model 639 stainless steel 9mm pistol. Part number 63935. This used part is a genuine OEM component and a direct replacement for the factory magazine catch nut in the 2nd generation S&W semi automatic pistol line. The magazine catch nut secures the magazine catch button assembly and is essential for reliable magazine retention and