Colt Paterson and discuss improvements to the Paterson to make it more appropriate for use in battle. Walker at the time was serving in the U.S. Mounted Rifles and not the Rangers. Colt Paterson The Colt Paterson is a revolver. It was the first commercial repeating firearm employing a revolving cylinder with multiple chambers aligned with a single, stationary barrel. Its design was patented by Samuel Colt on February 25, 1836, in the United States, France, and England, and it derived its name from being produced in Paterson, New Jersey. Initially this 5-shot revolver was produced in .28 caliber, with a .36
History of the New York City Police Department standard issued revolver for the NYPD. It was the Colt New Police Revolver in .32 Long Colt caliber. He also instituted required firearms training including pistol practice and qualification for officers. In 1907 the Colt Police Positive revolver in .38 caliber was adopted by the department. In May 1926 the NYPD adopted the .38 Special cartridge as the standard issue ammunition for the department and started issuing its officers the Smith & Wesson Model 10 revolver and the Colt Official Police revolver. In 1994 the NYPD replaced the revolver as its main service weapon and adopted the 9mm semiautomatic pistol