Model 12-2

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Will a spring kit for a K and L frame work on a M-12-2? I think I read somewhere that the frame was not exactly the same as a standard K frame until the M12-4 version. I want to tune my recent purchase and am not sure if a spring kit is the same.
 
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The alloy frame of the Model 12, 12-1, 12-2 and 12-3 is .080" thinner than the K frame.


I'd give S&W customer service a call.
 
Springs are the same:
12-3.jpg

10-5-2.jpg
 
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There is no difference between steel K-frame and aluminum K-Frame revolvers springs. On all models from 12 through 12-3 the internal parts and the stocks are different because of the thinner frame.
 
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