CA MP5A5 broken selector switch
 

alright so in a previous post I mentioned how my selector switch was loose
I recently tightened it which made it better
but then after my friend was fiddling with it it has now gotten to a point where it is stupidly broken
to operate it I must push very hard on both sides of the switch and then move positions and essentially it doesnt work worth crap

I dont know if there is anything I personally could do to help it
but if it would help I can provide pictures and videos of exactly whats going on

and otherwise if someone could recommend a nearby gun doc that could fix my gun cause this is very disappointing :(