The M240 was adopted as the U.S. Army's standard vehicle machine gun in 1977. The Marine Corps also adopted the M240 and M240E1 for use on vehicles like the LAV-25. It then went on to replace many older types of vehicle machine guns in the 1980s. U.S. Navy SEALs continued to use the "CAR-60" (M60E3) version of the M60 machine gun due to its lighter weight and slower rate of fire, which allows a more effective duration of fire with allowable levels of ammunition carried.