Colt Gold Cup 38 special 5 round blued Triple K
The length of this magazine is a normal 10 round length but only fits 5 rounds as they are rimmed cartridges.
Modification of the .45 Gold Cup to take advantage of the accuracy of the .38 special mid-range load. Modifications were to the feed ramp, and a major change to blowback operation because of the low power of the cartridge.
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