i have an lp icon e and i think the evil detonator would be a great choice. if not u could go with a bob long torpedo(i have this right now...works pretty good).
u can look at the reviews on www.pbreview.com
the evil detonator is an older reg but, VERY cheap, FAST recharge, but takes a while to break in.
u could go to the forum on air systems to go more in depth.