S&W K Frame Model 10-7 4" Tapered Pinned Barrel Blue Steel .38 Special, Part 1021BA pinned barrel Magazine Catch Spring

Magazine Catch Spring

Factory OEM part #423420000

Model: M&P Shield Plus 9mm only

It will NOT fit standard M&P models without thumb safety

Compatibility: Smith & Wesson M&P Victory Model revolvers chambered in

S&W K Frame Model 10-7 4" Tapered Pinned Barrel Blue Steel .38 Special, Part 1021BA pinned barrel Magazine Catch SpringSmith & Wesson K Frame Model 10 7 4" Tapered Pinned Barrel Blue Steel Part #1021BA Used OEM Factory Part . 38 Special Fits: S&W K Frame Model 10 7 Barrel Length: 4" Type: Tapered Pinned Barrel Finish: Blue Steel Caliber: . 38 Special Condition: Used original Smith & Wesson factory part, old style Frame Size: K Frame The tapered pinned barrel was used on S&W revolvers through the Model 10 7 era. The barrel pin locks the barrel to the frame for precise