The M203 Rail Mounted Grenade Launcher was designed for use with the Monolithic Rail Platform and other 1913 rail systems. This grenade launcher is suitable to handle the recoil of the 40mm round including flare, smoke, training, and incendiary rounds. These M203 2003 are easy to install, field removable, and have a low profile design.

NFA is an abbreviation for National Firearms Act. Since 1934, the Federal Government has regulated the ownership of machine guns and several other types of weapons (including grenade launchers). The National Firearms Act of 1934 provides for the registration, and the taxing of the transfer, of a class of weapons described as NFA Title 2 weapons (sometimes referred to as "Class 3 weapons"). These include machine guns, short barreled rifles (i.e. rifles with barrels less than 16" or less than 26" in length overall), short barreled shotguns, silencers (also known as suppressors) and regulation of destructive devices such as grenade launchers.

Proprietary launcher designed for use with the LMT Monolithic Rail Platform & other 1913 rail systems. Suitable to handle the recoil of the 40mm round. Easy to install, field removable, low-profile design.

Twist rate on the launchers is 1:48"

A few views looking down the business end

These are very well built, high quality units

The LMT M-203 mounted on the rail of this Rock River Arms SBR (Short Barreled Rifle). This rifle would be better off with the 9" version of the LMT M-203

The M-203 uses the magazine of the 'host' gun (the AR15) as a pistol grip. Then the trigger is pulled normally