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The standard M203 is intended for permanent attachment to the M16A1, M16A2 and M16A3 rifles, and utilizes a 12 in (30 cm) rifled barrel. The M203 unmodified to an A1/A2 series will not fit on the M4 carbine series. The U.S. M203A1 has a barrel of 12 inches, while the SOPMOD M203A1 has a 9 in (23 cm) barrel. The M203A1 is intended for use with ...
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 ...
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.
Ammunition for the muzzle-loading GP-25 consists of a single piece containing propellant and charge, as opposed to the more traditional two-piece case and projectile design of comparable US 40x46mm ammunition used in breech-loading grenade launchers, such as the M203. This integral "caseless" design – with the propellant and primer contained ...
Loading an M203 attached to an M16A1 with a practice round. Since grenade launchers require relatively low internal pressure and only a short barrel, a lightweight launcher can be mounted under the barrel of a traditional rifle; this type of device is referred to as an "underbarrel" or "underslung" grenade launcher.
The launcher is heavier than the M203, but does offer some advantages, such as no need for special mounting hardware and loading from the side instead of the bottom, which enables use of longer-than-standard grenades. [2] The XM320 was designed for use with the existing inventory of M16s and M4s and is also compatible with the XM8.
A grenadier is equipped with an M4 or M16 with an M203 grenade launcher (or the newer M320 grenade launcher) mounted to the weapon. Automatic rifleman (AR): Provides overwatch and suppressive fire through force multiplication. The most casualty-producing person in a fireteam, in terms of firepower and maneuverability when compared to the ...
The MGL is a low-velocity, shoulder-fired 40 mm grenade launcher with a six-round spring-driven revolver-style magazine capable of accepting most 40×46mm grenades.The spring-driven cylinder rotates automatically while firing, but it must be wound back up after every reloading.