Define Colt pistol. Colt pistol synonyms, Colt pistol pronunciation, Colt pistol translation, English dictionary definition of Colt pistol. 1. A self-loading or semi-automatic pistol with removable magazine in the handle holding seven cartridges. The rec
@nathan: Your serial number has nothing to do with your model number per se. Colt has been using the “SP” prefix in their serial numbers regardless of the actual model number dating as far back as 1963. However, to make some sense of their serial system, the prefix in the serial num...