bolt and feedneck wont make any difference on the blitz. The stock feedneck works perfectly fine. Also, my friend got the hush for his blitz and found it to cause more problems. Also, a stacked tube blow back isn't going to gain any efficiency or become any quieter.
Well i have no barrel atm so i need to buy a barrel, which would you recommend? I want the feed-neck for the blitz because i don't like twist lock feed-necks, also i heard the tech=t bolt has problems only if you have wrong o-ring size. But its only 20$ so im willing to take the risk. What advantages would it provide if it is working? Its worth 55$ it has to provide advantages
You should get a Lurker Eigenbarrel in .684. Perfect bore for everything!
How much are they worth? Also im not sure which bore the paintball's i use are i just get regular Walmart paint and i play in new york. Can you link me one of those barrels