I am not sure that Model 1 butt plates shrinking is correct - my understanding is that the butt plates were always small relative to the stock size. From a BRNO collector's perspective, having a Model 1 butt plate the same size as the stock is the first sign the stock has been sanded down/fiddled with. Regardless; if you have a Model 1 with a small butt plate, you should be happy with it!
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