An AK-74 equipped with an airsoft replica of the GP-25 grenade launcher. The development of a grenade launcher for the AKM assault rifle began in 1966 at the Central Design and Research Bureau of Sporting and Hunting Arms ( TsKIB SOO ).

Wikipedia: The GP-25 and GP-34 are a family of Russian 40 mm under-barrel grenade launchers for the AK family of assault rifles. They were first seen by the West in 1984 during the...

The weapon is a muzzle-loading, under-barrel grenade launcher designed to fire 40 mm caseless (i.e. not fired from a cartridge case) grenades. The weapon is in widespread service across the world, including non-russian variants and the later (visually very similar) GP-30.

2022年3月15日 · Page details technical specifications, development, and operational history of the GP-25 / GP-30 GL Single-Shot 40mm Muzzle-Loaded Grenade Launcher including pictures.

The GP-25 (Granatomyot Podstvolnyj=underbarrel grenade launcher) was developed between 1975 and 1978, based on the earlier experiments, conducted in USSR during late 1960s. GP-25 has been adopted by soviet army in 1978 for use with both 7.62mm AKM and 5.45mm AK-74 Kalashnikov assault rifles.

A 40mm GP-25 grenade launcher seen attached to an AK-74 series assault rifle.

GP-25 was the best possible option, as it was freely available on section level - soldiers did not have to wait for 82mm mortar or AGS-17 support. The initial order of issue of GP-25 grenade launchers was one per section, three per platoon - one …

The GP-25 Kostyor ("Bonfire"), GP-30 Obuvka ("Shoe") and GP-34 are a family of Russian 40 mm under-barrel muzzleloaded grenade launchers for the AK family of assault rifles. The acronym GP stands for Granatomyot Podstvolnyj, "grenade launcher" in Russian, and was adopted by Soviet forces in 1978.

The GP-25 Kostyor (lit. "bonfire") is a Russian 40mm underbarrel grenade launcher that is commonly fitted onto weapons of the AK series. In 1966, development of a grenade launcher for the AK assault rifle was started at the Sporting and Hunting Arms Central Design and Research.

The GP series 40mm single-shot muzzle grenade launcher was developed in 1972 for the Soviet Army infantry. Work continued until 1978, with limited production under the KBP Instrument Design Bureau brand label.