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1911 Rear Sight Cuts There are many different commonly used rear sight cuts for 1911s. This image covers many of the most popular that we make plates for. Novak The most popular rear sight cut is the Novak cut. The bottom of the dovetail measures around .50". Many 1911s use this cut, from Colts to Rock Islands. Some manufacturers do a better job at holding their tolerances with this cut and we have found that sometimes our mounts may require a bit of fitting. G.I. …