Originally Posted by worrptangl
They both are the same just different milling. Depends on the look you want. The RTR will give more grip due to the milling.
The rtr one seems to have more trouble sealing however. They sometimes require shimming or an extra oring tom seal. If this is your first sc phantom, I recommend picking up a basic set from cci and getting a feel for the parts before you start immediately upgrading...Enjoy sc