The RPG-7 (Russian: ???-7) is a portable, reusable, unguided, shoulder-launched, anti-tank rocket-propelled grenade launcher. Originally the RPG-7 (?????? ??????????????? ?????????? – Ruchnoy Protivotankoviy Granatomyot – Hand-held anti-tank grenade launcher) and its predecessor, the RPG-2, was designed by the Soviet Union; it is now manufactured by the Russian company Bazalt. The weapon has the GRAU index 6G3. The English-language term "rocket-propelled grenade", though frequently encountered and reasonably descriptive, is a backronym for "RPG" and not based on a literal translation.The ruggedness, simplicity, low cost, and effectiveness of the RPG-7 has made it the most widely used anti-armor weapon in the world. Currently around 40 countries use the weapon, and it is manufactured in several variants by nine countries. It is popular with irregular and guerrilla forces. The RPG has been used in almost all conflicts across all continents since the mid-1960s from the Vietnam War to the early 2010s War in Afghanistan.Widely produced, the most commonly seen major variations are the RPG-7D paratrooper model (can be broken into two parts for easier carrying), and the lighter Chinese Type 69 RPG. DIO of Iran manufactures RPG-7s with olive green handguards, H&K pistol grips, and a Commando variant.The RPG-7 was first delivered to the Soviet Army in 1961 and deployed at a squad level. It replaced the RPG-2, having clearly out-performed the intermediate RPG-4 design during testing. The current model produced by the Russian Federation is the RPG-7V2, capable of firing standard and dual high explosive anti-tank (HEAT) rounds, high explosive/fragmentation, and thermobaric warheads (see below), with a UP-7V sighting device fitted (used in tandem with the standard 2.7× PGO-7 optical sight) to allow the use of extended range ammunition. The RPG-7D3 is the equivalent paratrooper model. Both the RPG-7V2 and RPG-7D3 were adopted by the Russian Ground Forces in 2001.