GHK has been a leader in the gas blowback rifle industry since 2008, specializing in AK style replicas. With a reputation for high-quality and reliability, GHK has become one of the most trusted manufacturers in the industry.
Best frame there is at the pricepoint. It fits all tm-spec just fine, and the only difference compared to an advanced GSB frame is that the housing unit is just a little bit more wobbly