The RPG-7 is a further development of the previous RPG-2 antitank grenadelauncher. RPG-7, in its first version, known as RPG-7V, has been adopted by Soviet army in 1961, and still is widely fielded in Russia and at least 50 more countries. By far, RPG-7 can be considered as one of the most successful antitank grenade launchers ever made. The RPG-7 is a shoulder fired, single-shot, smoothbore recoilless launcher. Grenades are loaded from the front, and the rear of the barrel is fitted with venturi nozzle. Because of the recoilless design, there is a dangerous backblast zone, more than 20 meters/60ft long. The antitank grenades are of combination type, using a charge of smokeless powder for RCL-type launch. Once grenade reaches safe distance from the shooter (about 10-20 meters), the built-in rocket booster engine ignites and further accelerates the grenade, greatly enhancing the effective range (up to 500+ meters for single warhead grenades, up to200+ meters for much heavier tandem or FAE grenades). Because of increase in range, RPG-7 is usually issued with 2.7X fixed magnification optical sight, designated PGO-7. The sight has a range-finding scale for typical targets (tanks) with height of 2.7m/9ft, and windage adjustment scales. RPG-7 also fitted with backup iron sights. RPG-7 uses mechanical ignition system with manually cocked external hammer, and a single-action trigger. Because of this, grenade must be properly aligned with the firing mechanism upon loading.
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PRG-7
