The RH-70 was an experimental bullpup assault rifle developed in 1970 by Rheinmetall-Industrie-GmbH of West Germany. It was an entry for a possible 5.56×45mm NATO replacement of the 7.62×51mm NATO G3 battle rifle in German service. The magazine and the grip are quite close to one another (the space between the rear side of the grip and the magazine curve form somewhat of a "Thumbhole") however still allows the entire bolt to be placed in the rear of the weapon inside the stock, like in all bullpups, yet moving the ejection port much more forward and allowing both right and left-handed operation independently. The RH-70 was made for studying and developing the bullpup concept of a rifle in the small 5.56×45mm NATO caliber with the G3 system. The barrel is 20mm longer and the whole rifle is 235mm shorter than a standard Heckler & Koch G3 rifle.
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