my motor in my m4 is grinding real bad if anyone can look at it for me let me know im new at airsoft and i dont want to mess a good gun up

i can look at it for you.

well i dont know when we could hook up

http://www.youtube.com/watch?v=KKxyAWk0Ly0

try this

Have you check to see if the motor plate is loose. It also could be that the motor height needs to be adjusted.

^^thats what im thinking to,motor height is off.try making adjustments on your middle screw on the bottom of your handle(left/right),i'de think you should tightin it,its prob. not reaching the gears.just try not to tightin it to much,tweek alil then try it,etc...& make sure other two screws are tight as well like KiltMan said.not def. that'll fix the prob.,but worth a shot