This was the roll out of the Toytec prototype in Japan back in the 1980's
Toytec minigun paper instructions with multilanguage support.
Parts is parts, this is a wide mix of die cast pot metal, sheetmetal with some steel bearings and brass.
Spring piston air cylinder set that gives the TT its punch without having to lug a CO2 tank around.
Note the spline pickup blades, now imagine this running at 50-100rpm in the channel slot of the photo below. Now you may imagine why this had to use harder than standard airsoft pellets. A case of them is also pictured below.
Pellet pickup channel.
A case of special airsoft pellets for the TT design mini.