yep. they do fit.just about all spyder parts fit on piranhas, the guns are very, very similar. my freind has a spyder tl+ and his sight rail fits on my piranha vtl g1. PEACE
Matrix LE, 12'' boomy, 68/3k crossfire
plz, dont let a loved one wear the brass eagle mask in my avatar. freinds don let friends wear brass eagle.