This Tippmann Sierra One(C98) Cyclone Feed System links the feeder sprocket to the air system (no batteries required!) for synchronized ball feed for reduced breakage and jamming. It feeds up to 15 balls per second and includes a wide mouth 200 Round Hopper that attaches via quick release elbow. No more shaking the marker to unjam paintballs and virtually eliminates ball chopping, even on Response Trigger and Egrip models. Installs easily on any Tippmann 98 or Sierra One markers and yes, you can still hinge the feed off to the side so you can run your squeegee through the breech!