Gate EON Hop-Up ChamberEON CNC Hop Up Chamber by Gate. This Hop Chamber is very versatile and comes with many unique features and parts. EON Hop Up Chamber Highly precise CNC machined hop up chamber stuns with FPS precision & consistency, ensures a perfect sealing and BBs feeding. Revolutionary TDC system of hop up adjustment always gives you an ideal and horizontal placement of hop up nub, what makes the BBs' flight trajectory perfectly straight. Tight tolerances of