The leading goto shop for anything Tokyo Marui is Eagle Six Airsoft in the UK and they got parts and adapters especially for the New Generation Recoil Shock Series as well as they do upgrade services. In this video Richard tests an upgraded Marui 416 DEVGRU NGRS, one of the more sought after NGRS models... "Richard from our tech team talks about and demonstrates a customers upgraded Tokyo Marui HK416 Devgru NGRS."