Previously, the classic .45-caliber Colt 1911 was one of three pistols that Raiders were allowed to carry, but now the 9mm Glock 19 is the only pistol that Marine special operators can take into battle, said Maj. Nick Mannweiler, a spokesman for Marine Corps Forces Special Operations Command.
“We put our money behind the 9mm round fired by an extremely well-trained marksman carrying a Glock 19,” Mannweiler told Marine Corps Times.
“Based on lessons learned in our operations, we also took into consideration how well a round could penetrate objects of varying densities and in different environmental conditions,” Mannweiler said. “We concluded that a 9mm round suited our needs.”