GP-25
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. They were first seen by the West in 1984, during the Soviet invasion of Afghanistan.
| GP-25 grenade launcher | |
|---|---|
| Type | Grenade launcher |
| Place of origin | Soviet Union |
| Service history | |
| In service | 1978–present |
| Used by | See Users |
| Wars | War in Afghanistan Soviet–Afghan War Transnistria war First Chechen war Second Chechen War War in Afghanistan (2001–2021) Russo-Georgian War Syrian Civil War Russo-Ukrainian War Yemeni Civil War (2015–present) Saudi Arabian-led intervention in Yemen Saudi–Yemeni border conflict (2015–present) |
| Production history | |
| Designer | TsKIB SOO |
| Designed | 1966–1978 |
| Manufacturer | Kalashnikov Concern STC Delta Arsenal AD Zastava Arms |
| Produced | 1978–present |
| Variants | GP-30, GP-30M, GP-34 |
| Specifications | |
| Mass | 1.5 kg (3.31 lb) (GP-25) 1.3 kg (2.9 lb) (GP-30) 1.4 kg (3.1 lb) (GP-34) |
| Length | 323 mm (12.7 in) (GP-25) 275 mm (10.8 in) (GP-30) 315 mm (12.4 in) (GP-34) |
| Barrel length | 120 mm (4.7 in) |
| Cartridge | 40 mm internal propellant caseless ammunition (CL) |
| Caliber | 40 mm |
| Action | Closed system, single-shot |
| Rate of fire | 20 rounds/min area suppression 5–6 rounds/min aimed shots |
| Muzzle velocity | 76.5 m/s (251 ft/s) |
| Effective firing range | Sights adjustable 100 to 400 meters |
| Feed system | Muzzleloader |
| Sights | Notched quadrant sight |
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