None, as there are none to support it, though I did hear that PT feed tubes are interchangeable
Fired 80 through it, no probs. Ball detent. Field strips. Springs Spyder interchangeable
No instructionsl! Needs better parts list and .com to order instead of a #800
Well, like I said I had fired about 80 rds through it prior to field play. Sometime after replacing the cart and getting ready for play the puncture pin either fell out or I pulled it out. You could guess when I needed it and I did but it didn't fire of course. Even though I didn't get to 'field test' it it still worked like a charm and with no air leaks!
I would still buy it as my back-up! Dang thing is kewl and I hit what I aimed at.
I did find looking for parts a hassle until I found out the REAL authorized dealer is Nationalpaintball.com
My puncture pin cost? ZERO! I asked about getting a few extra's and they said sure! price? ZERO!