Now available in Japan is Czech-made ZB26 AEG which was actually released last year. Gunsmith Baton has this in stock which they sell at JPY76,990 tax included. This weighs around 6.48 kilograms, with a full length of 1,190mm. The magazine ha sa capacity of 500 rounds of 6mm BBs. Since it's made for the Japanese market, it fires at 0.787 joules or 291fps.

Read more about the Myth ZB26 At Hyperdouraku. (In Japanese)