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The M203 was the only part of the United States Army's Special Purpose Individual Weapon (SPIW) project to go into production. The M203 has been in service since 1969 [1] and was introduced to US military forces during the early 1970s, replacing the M79 grenade launcher and the conceptually similar Colt XM148 design. However, while the M79 was ...
Box full of 40×53 mm high-velocity grenades A 40×46 mm low-velocity training round being fired from an M203 grenade launcher. This is a general collection of the world's many types of ammunition for grenade launchers in 40 mm (1.57 in) caliber. Several countries have developed or adopted grenade launchers in 40 mm caliber. [1]
The M576 is a US Army designation for a 2.646 in (67.2 mm) long and 0.254 lb (0.12 kg) heavy US 40mm grenade buckshot load used in the M79, M203, M320, and M32 MGL grenade launchers. [1] It is olive drab with black markings.
The MK281 is a new type of 40 mm grenade ammunition that has been accepted for use into the United States Marine Corps and the United States Army. The Rheinmetall MK281 Mod 0 and Mod 1 40×53 mm practice cartridges are precision, high-velocity training and practice cartridges.
After the Vietnam War the 105mm tank gun M68 was also provided APER-T ammunition M494. APERS-T rounds in 40×46 mm were also available for the M79, M203, and M320 grenade launchers. Subsequently, it was reported that the USSR had developed similar rounds for 122 mm and 152 mm artillery for use in indirect fire.
M320 Grenade Launcher Module (GLM) is the U.S. military's designation for a new single-shot 40 mm grenade launcher system to replace the M203 [4] [5] for the U.S. Army, while other services initially kept using the older M203. The M320 uses the same High-Low Propulsion System as the M203. The M320 can be mounted on the M16 series of rifles ...
As the week wound down, General Dynamics claimed a pair of contract wins from the Pentagon, worth more than $59 million combined. The larger of the two awards, for an even $45 million, went to ...
The 40 mm ammunition used (40×53 mm) is not interchangeable with that used in the M203 (40×46 mm). The M203 ammunition develops a lower chamber pressure, and resultant lower muzzle velocity and range, compared to ammunition loaded for the Mk 19. The Mk 19 fires from an open bolt. The rounds are mechanically fed onto the bolt face with the ...