GP-25

The GP-25 grenade launcher is originated from Russia just like the AK-47.The 40-mm GP-25 underbarrel grenade launcher is an issue weapon of the Russian Army. It is also used by Special Forces including SPETSNAZ of the Federal Security Service (former KGB) and Ministry of Justice. The GP-25 is a Grenade Launcher that originated from the Soviet Union. It is used on the AK-47 by the Loyalists, OpFor and the Ultranationalists in Call of Duty 4: Modern Warfare.Sergeant Kamarov also prefers an AK-47 with a GP-25 attached to it. Unlike the M203, the SAS's and Marines' grenade launcher, in which the grenade compartment slides forward to accept/release a grenade shell, the GP-25 simply has a hole in front, which the user snaps his/her wrist to release a spent grenade, and just drops in a fresh one. It is called "Mortar-like" loading. In reality, the GP-25 uses caseless grenades, which do not leave a shell in the grenade launcher. This allows the shooter to simply load a new grenade without spending time to extract a spent case. Although it is seen mounted to an AKS-74U in the armory on the level F.N.G., it cannot be fitted to this weapon in Multiplayer.