Big Dragon hi speed ball baerings gear set (16:1)

Newest dual tempered steel set for aeg
spur and sector gear have ball bearing support
rotant delayer cam pin for ideal bb feeding
max rotation with incredible battery save
fits g&p,g&g,ka,marui type gearbox for m16/g3/ak etc....
hi ratio set shoot bbs each 16 spin of bevel gear
ideal to use with max sp110 spring