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style="font-size: larger;" | US M203
Technical Summary
Caliber40x46 mm grenade
Firearm actionSingle-shot, Single action
Barrel length12 in (305 mm)
Overall length w/M1639 in (990 mm)
Effective range160 yd (150 m)
Maximum range1,312 ft (400 m)
Rate of fire5 to 7 round/min
Muzzle velocity250 ft/s (76 m/s)
Weight, launcher (unloaded)3 lb (1.36 kg)
Weight, launcher (loaded)3.5 lb (1.6 kg)
Weight w/M16 (loaded)11 lb (5.0 kg)

M203 generally refers to the United States Army designation for a single shot 40 mm grenade launcher that attaches to the M16 assault rifle or the M4 Carbine. Stand-alone variants exist as do versions capable of being used on many other rifles. The device attaches under the barrel and forward of the magazine, the trigger for it being just forward of the magazine. The magazine functions as a handle of sorts when firing for the M203. A separate sighting system is added to rifles with the M203 as the rifle's regular sights are not matched to the launcher. The M203 can fire high-explosive, smoke, illuminating, buckshot direct fire, CS gas, and training grenades.

History


The M203 was introduced to U.S. military forces during the early 1970s, and replaced the older M79 grenade launcher. However, while the M79 was a separate weapon entirely, the M203 was designed in order to increase the efficiency at which a soldier could alternate between bullet fire and HE grenade fire.

It is sometimes thought that the M203 was a poor replacement for the M79, as while the M79 was quick to reload and more or less accurate under adverse conditions, such as in Vietnam War, the M203 was more difficult to operate, and could be sent off-target more easily by variables such as a gust of wind.

A new grenade launcher in development, the XM320, will likely replace the 203 in United States service eventually. The XM320 weighs more than the M203, but has some added benefits.

The 40 mm grenades used in the M203 are not the same as in the Mk 19 grenade launcher, which are of higher power.

Components


The M203 Grenade launcher system comes with a variety of components, usually including the launcher, adaptors for attachment to assault rifles, and leaf sights (which can be used with the rifle's front sight post). M203s can also come with quadrant sights, mounting to a MIL-STD 1913 Rail, or to the carrying handle of an M16 rifle.

Variants


There are numerous variants of the M203 manufactured in the U.S., and throughout the world, for various applications. These vary chiefly in the length of the barrel, attachment type, and quick detach (QD) capability.

The standard M203 is intended for permanent (armorer level) attachment to the M16A1, M16A2 and M16A3 rifles, and utilizes a 12" rifled barrel. These can also be attached to M4 and M4A1 carbines, using a different front attachment point forward of the front sight block, but the SOPMOD kit uses M203A1 grenade launchers.

The M203A1 is intended for use with the M4 and M4A1 Carbine. The barrel is shortened to 9", and principally the M203A1 QD is able to quickly detach from the rifle, and be replaced by a Knight's Armament Company M4 RAS lower handguard. An advantage of using a 40 mm grenade launcher on an assault rifle equipped with MIL-STD 1913 Rails is the attachment of various range-finding optics.

The M203A2 is intended for use with the M16A4 MWS (Modular weapon system). Using standard 12" barrels, the grenade launcher is intended for use in concert with the Knight's Armament Company M5 RAS. Again, an advantage of this system is the attachment of range-finding optics makes precision targeting easier.

The M203 Pi system is used for attachment of the M203 to other rifles, including but not limited to the Steyr AUG, H&K G3 and other rifles. Most of these other companies have since devised 40 mm grenade launchers custom integrated with the weapon.

Civilian ownership


M203 grenade launchers are classified as "Destructive Devices" under the National Firearms Act subject to the NFA process. M203s are not that common in the civilian NFA market because each explosive 40 mm grenade is also subject to the NFA process and its subsequent $200 tax. 37 mm flares are legal for civilian use without a NFA stamp, and 37 mm flare launchers have been built along near identical lines to the M203 launchers.

Data


  • Launcher: 3 pounds (1.36 kilograms)
  • Rifle (M16A2): 8.79 pounds (3.99 kg)
  • Total (including 30 rounds): 11.79 pounds (5.35 kg)
  • Bore diameter: 40 mm
  • Maximum effective range:
    • Area target: 1148 feet (350 meters)
    • Point target: 492 feet (150 meters)
  • Maximum range: 1312 feet (400 meters)
  • Minimum safe range:
    • Non-Direct Fire: 115 feet (35 meters)
    • Training: 427 feet (130 meters)
    • Combat: 102 feet (31 meters)
  • Unit Replacement Cost: USD$601 (2005)

Note: some data differs for versions that attaches to M4 Carbine


References in popular culture


The M203 is known to the common man as "the shorter, larger gun under the M16 and M4" and has been used to defeat "bigger or tougher foes" in most films, TV series and video games. As with the M16 rifle, M4 carbine, M249 SAW and M9 pistol, the M203 is a hallmark of the modern American soldier.

Films

  • The M203 mounted on an M16 is the weapon made infamous in Scarface when Tony Montana says, "Say Hello to My Little Friend."

  • It also makes an appereance in both Predator movies, one on an M16 and one on a CAR-15.

  • The M203 has been shown in cinematic depictions of modern US military actions, most notably Black Hawk Down and Jarhead.

  • A 'stand-alone' version of the M203 fitted with a pistol grip also made an appearance in the film xXx.

Games

  • The M203 is available in Typhoon Rising, Escalation, Joint Operations: International Conflict and Joint Operations: Reality as a weapon choice mounted under the M16A2 and M4A1.

  • The M203 also makes an appearance in the video game Parasite Eve 2 as one of the many weapons that can be attached to the M4A1 assault rifle.

  • The M203 is again seen in the video game Full Spectrum Warrior, where its tactical use by a grenadier is explored.

  • The M203 mounted under an M4 carbine is available for use in The World Is Not Enough, though sometimes can erroneously fire two grenades before reloading.

  • The M203 appears in the video game Assault on Terror attached to the M4A1 assault rifle as a weapon choice.

See also


External links


Grenade launchers | Modern artillery of the United States | 40 mm artillery

M203 (Granatwerfer) | M203 | M-203 | Granatnik M203

 

This article is licensed under the GNU Free Documentation License. It uses material from the "M203 grenade launcher".

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