Bill Nup dropped a line in to let everyone know that WGC are began stocking the M203 Masterkey from GB Tech was released at WGC in HongKong last week.
This comes in two variants available built from metal and AB plastic. The regular comes in at 800 USD and deluxe version costs 900 USD and weighs 2600g. Both packages include a 40mm shell. The main difference seems to be that the deluxe version has a reflex quadrant sight.