Grenade Launchers-Underbarrel

GP-30

An underbarrel grenade launcher developed by the Russians in 1989 for use with the AK weaponry. It was a simpler and cheaper launcher than it's predecessor. It was also much more combat effective. The launcher used VOG grenades which featured a caseless design, meaning it would leave nothing in the barrel after being fired. Each grenade launcher was issued with rubber recoil pad for host rifle, and a special return spring guide with receiver cover catch for use on early production Kalashnikov rifles. It is, like almost every other underbarrel launcher a single shot launcher.
Caliber: 40mm
Overall length: 320 mm GP-25, 276mm GP-30
Weight: 1.5 kg unloaded GP-25, 1.3 kg unloaded GP-30
Effective range: up to 150 meters

The close-up on GP-30

GP-30 mounted on AK-74. Look at the stock to see the rubber pad issued with every launcher.

M203

It was developed in 1967 as a replacement of the ineffective M79 launcher. Unlike it's predecessor, the M203 was an underbarrel grenade launcher that fired standard 40mm ammunition. It was created as an attachment to the M16 rifles, in order to increase the rifle's capabilities and was produced, like most American weapons by Colt. Colt also introduced a smaller version of M203 called the M203A2 for use with the M4 rifle. Both versions of the M203 are single shot and feature the same loading mechanism.Unlike the other underbarrel launchers, this one can be mounted on shoulder-stock or pistol grip assemblies, also created by Colt.

Caliber: 40mm (40x46)
Overall length: 380 mm
Weight: 1.36 kg unloaded
Effective range: up to 150 meters point target, up to 350 meters area target

M203 Close-up

The loading guide of the M203

HK-79

The HK79 underbarrel grenade launcher has been developed by the famous company Heckler-Koch from Germany. This add-on launcher was mounted on 7.62mm G3 and 5.56mm HK33 and G41 rifles, developed by the same company. It is a single shot grenade launcher capable of firing any type of a 40mm grenade.
Caliber: 40mm (40x46)
Overall length: n/a
Weight: 1.5 kg unloaded
Effective range: up to 150 meters point target, up to 350 meters area targets

The HK-79