TM FAMAS

[Madball]

Iv just fixed my famas or so i thought, id taken it apart and removed the reverse lever to stop the gears from winding on after id fired a burst. i also upgraded my spring, piston and hop rubber. When i used to fire my famas the first few rounds would hit the ground infront of me then its would fire correctly, NOW ita does a similar thing, it fires a few rounds at the same time misses out a few and then fires normally, also the rate of fire has increased dramaticaly which is stupid because the tm famas had a fast rate of fire to begin with. anyone know whats wrong???