It's dead easy mate. Just watch for the anti reversal latch spring as those ping off. If you cut the spring down heat the spring up where you've cut it and press it to double coil it again if that makes sense
Don't mess with owt else, it is probably a m110 in there. if aiming for 350 max then AoE should bring it down 10 to 15fps. If for Mall's 340 max then AoE and leave gun cocked overnight "should" suffice I reckon
Well its back together again and now it fires the minute I touch a battery to the connector! I shall remember that the next time I try and fiddle with a new box Duck
Found the problem that caused it to just fire constantly but now I can get the frigging back together full stop without something pinging out last minute :/ had more then enough of it for one day