Following the demise of the Viper and Breadwinner models in the early 1980s Ovation was looking for a new direction for its solid body guitars. They decided to market three models as the HardBody series: the GP and GS guitars and the UB bass. The bodies and necks were made in Korea by Samick, and the guitars assembled in the USA. By all accounts these were well made instruments which failed to find popularity.
It was a double cut-away set neck guitar, with Les Paul style hardware. This was Ovations take on improving the Les Paul. The deviations (improvements?) from the Les Paul design were the double cut-away body and the blended neck heel.
The GS was Ovation's take on the Fender stratocaster. By the time this model was made Ovation had outsourced the production of bodies and necks to Samick in Korea, but the final assembly was done in the USA.