The M45A1 Close Quarters Battle Pistol (CQBP) was announced on July 20, 2012, chosen from three submissions to a 2010 solicitation handed down by Marine Corps Systems Command (MARCORSYSCOM). Colt, Springfield Armory, and Karl Lippard Designs offered a replacement for the age-old rebuilt .45s, and thus, a variation of the Colt 1911 Rail Gun renewed its enlistment in the U.S. Marine Corps.
The initial delivery order following the announcement specified 4,036 pistols and spares. The contract, however, carries with it an indefinite-delivery and indefinite-quantity clause for up to 12,000 M45s, spare parts, and logistical support. The value of this contract is said to be worth $22.5 million to Colt.
Marine Corps Special Operations Command (MARSOC) and Marine Expeditionary Unit Special Operation Command [MEU(SOC)], members of Force Recon, Special Reaction Teams (SRT), and the Marine Corps pistol team are the expected end-users for the first new Colt 1911s added to an armory’s inventory since World War II.