ok I got it back together and my make shift fix on the plastic seems to be holding just fine... however I think I must have messed up somewhere on the re-assembly. with a fully loaded clip on semi or auto the gun would not fire anything. if I put one BB in the chamber and invert the gun after a couple pulls of the trigger it would fire. not with the clip in though.
so back apart it came I checked everything over and it seemed correct save for the barrel was slightly out of it clip. fixed that put it back together... now with the clip in it does any of these things...
fires 1 round properly
fires 2 rounds at the same time really weakly
lets 1 BB roll out the end of the barrel
fires 2 rounds very hard.....
fires 1 round very weakly