My bad. I dunno, check the tippmann website. Im not sure if the prolite is made for upgrades like the 98c, so it may not have many GTAs available. Things like expansion chambers you won't need to search for prolife-specific version of, unless it doesn't have a verticle adapter (don't know much about prolites). Don't worry about an after market bolts, you don't need one unless your normal bolt is worn, which doesn't happen very often with tippys. I am not sure what threads the barrel is.
__________________ Scattered sandals
a call back to myself,
so hollow I would echo.
- A poem by Ray Kurzweil's Cybernetic Poet.