If you're playing at 330 FPS or lower, I cannot recommend the Tanio Koba barrels enough. Very hard to find but work wonders! I have a tippy that's been shortened and the inner is only about 180-200mm long, but using the TK I was out ranging my 360FPS TW. AS Qlimax said, theres a few mods to tidy the rifle up, then it's gold
You can't put to many in there otherwise the bolt won't lock back. The 10p isn't a must and the washer is a standard part you can add an additional washer. None of the spring mods are required, they just help if you have shite ROF. Tthe main thing to do with the spring is grease it up otherwise it makes a horrible clanging noise
Well I have a spare MagPul PTS pistol grip with me so upon getting the Tippmann I'll try put it on and get back to you. If it screws in like a GBBR or an AEG pistol grip it should fit with minor modifications. Charging handle is a no? Isn't a standard GBBR charging handle?
The setup inside a Tippmann grip is completely different to what would be in a P* or SMP grip. Tippmann have designed their grip to store some of the HPA functions and with that it currently means the grip isn’t changeable. Well not a straight forward change anyway.