Need some opinions on fixing a gun.

[Knose]

So im new to airsoft and got a broken gun from a friend he doesn't want. and i want to try and fix it. What are all of the tools needed to get into a gear box and put it back together. Along if anyone can help me find some videos that can show me how to properly get into a gearbox. that would be great

[Android]

http://www.mechbox.com/.
Start here.

[Knose]

http://www.mechbox.com/.
Start here.

Thanks

[Russkie]

What gun is it? Mechbox is good, but they are bit out dated due to all the TM stuff on there. Youtube has got plenty of great tutorials.

[Knose]

What gun is it? Mechbox is good, but they are bit out dated due to all the TM stuff on there. Youtube has got plenty of great tutorials.

It's a little plastic javelin m4 that is electric blow back

[Russkie]

Ooof, have fun fixing that. Those are prone to breaking. Anyway, they are standard Version 2 gearbox AR design, so videos will have you covered for the disassembly and assembly.