

Seeing the popularity of these compact pistols, other pistolsmiths began offering similar conversions on customers' 1911s. The following year, Pat Yates of Detonics had introduced his compact "Combat Master", a chopped down 1911, with 3.5" barrel and a shortened grip frame. In 1975, Rock Island Arsenal developed a compact M1911 pistol it called the "General Officer's Model Pistol" for issue to general officers of the US Army and Air Force, but the pistol was unavailable for sale to the general public. It was introduced in 1985 as a response from Colt to numerous aftermarket companies making smaller versions of the M1911 pistol. The Colt Officer's Model or Colt Officer's ACP is a single-action, semi-automatic, magazine-fed, and recoil-operated handgun based on the John M. Concealed Carry Officer's pistol, Lightweight Officer's ACP
