Developed in 1976, during the hight of the Cold War, the GPR-76 was intended to bridge the gap between the high-powered battle rifle and the light intermediate assault rifles currently in service with the Cordian Military. Firing the .280 British cartridge, it offered lower recoil and weight compared to full rifle cartidges, and longer range and better penetration over intermediates. Intended to be able to fill practically any infantry role, the weapon featured a quick-change barrel, could be changed between open and closed bolt operation in the field, and was issued with a 8x scope and bipod, as well as two barrels, one of 25 inches and one of 18 inches. While the New Cordian military expressed no interest in the weapon, seeing it as a "jack of all trades, master of none", foreign powers showed considerable interest in the weapon, and most models were produced for export. The GPR-76 would later serve as the basis for Castle Arms International's ACT-96/69 rifle family.