It is the Impulse thread. It is used on the NXT(Not SFT, that had it's own thread.), ions(Unless they changed the breach out for one with dif. threads), Impulse(Really...), Vibe, SP8, SP-1, Epip, and Eos. I'm probably forgetting one.
Last edited by TheImPgoD : 12-15-2007 at 09:31 PM.