Many people compare the Detonics to Mr. Browning's "Colt" 1911A1, albeit a scaled down version. This is incorrect. The initial prototype and first production Combat Masters were assembled from cut down 1911 frames, but the revolutionary genius of the mechanisms mechanical engineering reflects but a rudimentary similarity to the 1911A1. A close look at a field stripped Combat Master will leave no doubt to it's independent classification.
This thread goes a long way in identifying the evolution of the various models and their time of production. Finish may vary, but functionality remains constant, a Detonics, is a Detonics, is a Detonics!
