Its a strait through. Yep its a spyder all right. That one's for a Sonix pro, but I'm about to get a Pilot ACS, which is also a top cocking bolt (and it might fit in that one too). Luckily, Kingman saved me the effort and already has a delrin ACS bolt in the marker.
Oh, and also, if you are curious, the new one isn't actually 3/4 of the size of the old one;). Its actually exactly the same size, but it looks smaller from the angle. Some people on the paintball forum asked me about that:D.