from Karl Lippard Designs, a Colorado Springs-based arms maker, was called the Close Quarter Battle Pistol: an M1911A1-style pistol, built using S7 tool steel and a large number of proprietary components including accessory rail, grip safety, and sights. On July 20, 2012, the Colt 1911 Rail Gun was selected and won a contract to initially deliver 4,000 pistols for MARSOC and Force Recon. The pistol was redesignated the M45A1 Close Quarter Battle Pistol (CQBP) and up to 12,000 will be delivered. The Colt design is considered an upgrade of the previous pistol, not an entirely new design. Specifications The original pistols were hand-selected standard government issued Colt M1911A1s that were gutted, deburred, and prepared for additional use by the USMC Precision Weapon Section (PWS) in Quantico, Virginia. They were then assembled with after-market grip safeties, a rounded hammer, ambidextrous thumb safeties, lighter triggers made by Videcki, improved high-visibility sights, accurized match-grade barrels made by Bar-Sto, Pachmayr rubber grips, front cocking-serrations, and improved stainless steel magazines made by Wilson Combat. The trigger-pull weight is specified at between 4.5 and 5.0 pounds-force (20 and 22 newtons). The pistol's components are hand-fitted and are not interchangeable. The last four digits of the weapon's serial number are stamped on the top of the barrel, on the right-side of slide assembly, inside of the beavertail grip safety, on each side of the ambidextrous thumb safety, and on the inside face of the mainspring housing group. M45A1 CQBP In 2012, the Marine Corps awarded Colt a contract for up to 12,000 M45A1 pistols with an initial order of 4036 pistols. The Marine Corps issued the M45A1 to Force Reconnaissance companies, MARSOC and Special Reaction Teams from the Provost Marshal’s Office. The improved M45A1 CQBP features several changes to the original M1911A1 design. One feature is the dual recoil spring system that spreads out the recoil force of the .45 ACP round by lowering the peak force of the recoil pulse. It also has 3-dot tritium night sights, a 5-inch national match barrel, ambidextrous safety, picatinny rail, and a desert tan Cerakote finish. In 2016, USMC command stated that MARSOC had replaced the M45A1 with the Glock 19, largely from a logistic standpoint, not from a performance and reliability standpoint, as a result of other SOCOM branches using the Glock 19. As of March 2019, Force Recon, and other units still use the M45A1 and some units