What size are Tokyo Marui star-head screws?

[Luckyorwhat]

I'm trying to get the tri-nozzle out of an M3, but there are some star-head screws in the receiver that are too small for my drivers. The smallest I have is a T-10 screwdriver bit, but it is probably twice as large as the screws.

Anyone know what to use on them?

Thanks;
Scott

[CalvinTat]

If the screws are anything like a V2 Gearbox's screws then: Size 11 Torx, size 10 will work.

If not, then I have no clue.