AK47 Loose selector switch

[Jordan]

Hey guys,

My AK's selector switch is loose, and I'm not sure how I can improve it.

Basically, in full auto mode, the vibration of the gun causes the selector to slip and stay in a halfway position between AUTO and semi, causing it to not fire at all, until I lock it in semi.

I tried tightening the screw on the outside of the switch, but it loosens even after tightening it on auto from the vibration again.

Is the problem the screw, or is the problem taking place with a loose piece inside the gearbox?

Thanks

[Skladfin]

loctite