The Trooper was offered in a variety of formats upon customer request.Ĭalibers offered were the. The Trooper continued to sell reasonably well up until 1969 when Colt discontinued all the old style 'E&I' frame revolvers except for the Python. 22LR model continued to use the 'E' frame. 357 Magnum with the frame mounted 'I' frame firing pin. What Colt actually did was to switch the Trooper to the 'I' frame, and discontinued the 'E' frame version.Īfter this, the Trooper was available in either. The 357 and Python used the new 'I' frame which was basically the 'E' frame only with the firing pin mounted in the frame. The original Trooper had been made on the 'E' frame which had the firing pin mounted on the hammer. With sales of the 357 down, Colt decided to simplify the line in 1961 by discontinuing the 357 and offering the Trooper in. 357 Magnum cartridge and a higher quality gun were buying the Python. The Trooper continued to sell well to law enforcement and civilians, but those wanting the. The Trooper sold well, but the 357 sales were less than expected due to the introduction in 1955 of the super-premium Python. 22LR version for use as a 'trainer' gun to complement the. The new revolver was introduced in 1953 and was an immediate success with law enforcement and civilian shooters. The only real change was to thicken the top strap to allow extra metal so an adjustable rear sight could be installed.

The Frame was Colt's standard medium size 'E' frame that had been made virtually unchanged since 1908. The new Trooper model was really nothing more than the Colt Officer's Model Match with a ramped front sight on a large ramp base. 357 Magnum cartridge or wanting a higher quality revolver. The Trooper was intended to be sold to law enforcement and civilians wanting a less expensive adjustable sighted revolver, with the 357 model for sale to those wanting the. These were the 357 Model and the Trooper. In the early 1950's Colt began to update their product line with upgraded revolvers.Ĭolt realized that the gun buyer now wanted double action revolvers to have adjustable sights so they offered two new models with the desired feature.

Revolver frame size colt d frame