PewClub Entertainment demo this adapter from AirTAc that Tokyo Marui SAIGA-12K GBBs owners might be interested in. According to them this is designed to beautifully conform to the Saiga's Kalashnikov aesthetic, this adapter enables users to run their Saiga on HPA with M4 AEG magazines. Building up the adapter requires a valve key and the internal components – specifically the valve, gas router holder, and gas router – from a donor Saiga magazine, ensuring absolute compatibility. For optimal feed and fitment, the manufacturer recommends using PTS EPM1 (250 round) or PTS EPM1s (170 round) magazines with this adapter, which is constructed from an impact-resistant black polymer.