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M203

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Firing The M203 Grenade Launcher With M4 Carbine

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Soldier Goes Cyclic On M203 Grenade Launcher - Fires 25 Grenades At Taliban Position

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M203 Assembly

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How to shoot a M4 with M203 Grenade Launcher | Field Test | Tactical Rifleman

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U.S. Marines M203 Grenade Launcher Live Fire Range - Sustainment Training

The M203 is a single-shot 40 mm under-barrel grenade launcher designed to attach to a rifle. It uses the same rounds as the older stand-alone M79 break-action grenade launcher, which utilizes the High-Low Propulsion System to keep recoil forces low. Quite versatile and compatible with many rifle models, the M203 was originally designed for the U.S. M16 and its variant, the M4 Carbine. The launcher can also be mounted onto a C7, a Canadian version of the M16 rifle; however, this requires the prior removal of the bottom handguard.
  • History 

  • Uses 

  • Rounds 

  • Components 

  • Variants 

  • Users 

  • Civilian ownership in the United States 

  • Data