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The KH-2002 Khaybar (Persian: خیبر Khaybar) is an Iranian bullpup assault rifle. It takes its name from the Battle of Khaybar.
The KH-2002 was first displayed to the public in 2004. It was designed by DIO as a replacement for Iran's stockpiles of elderly 7.62×51mm NATO Heckler & Koch G3 battle rifles, most of which were manufactured in the time of the Imperial State of Iran under license.
Khaybar KH 2002 assault rifle is gas operated, selectively fired rifle of bullpup layout. It uses M16-type direct gas system with multi-lug rotary bolt locking. Polymer pistol grip with enlarged trigger guard is attached below the tubular barrel shroud patterned after the Kepplinger HV-71. Safety / fire selector lever is located at the left side of the receiver, behind magazine housing and away from the pistol grip. Ejection is to the right side only. Feeding system uses M16-compatible magazines, with M16-style magazine release button located on the right side of the magazine housing. Sights are of open type, with rear sight being installed within a carrying handle. Additional equipment includes lightweight folding detachable bipods and knife-bayonet. According to the manufacturer, rifle is available with three styles of barrels: short (carbine), medium (standard rifle) and long (designated marksman rifle).