I have a Willy Clapp Edition GP100 which has the 3 Inch barrel, Dovetailed Novak 1911 sights, special rubber grips, and a Non Shiney finish to the Stainless Steel. Pretty neat GP100, but not the one I am talking about here.
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Normally when you look for a 3 Inch GP100 it has a Pinned Front Sight...