This windage screw kit is required for use of the Weigand Competition Rear Sight Blade.
The individual components of this kit are available separately from Smith & Wesson, and include:
Rear Sight Plunger: # 853943
Rear Sight Plunger Spring: # 592537
Rear Sight Windage Nut: # 441065
Rear Sight Windage Screws: # 453025
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