MadBull have sent over some more details of their Hopup unit and a new LED module they are about to release:
Gents, Based on the US distributor’s test, our Hopup chamber unit have great performance and air seal. (*)
Tested on ECHO1 M4: Average High Low
stock echo barrel 297.34 303.5 289.5
stock blue bucking(MadBull Blue Bucking)
stock hupupstock echo barrel 312.55 317.3 308.4
NEW MB bucking(in package)
NEW MB HUAfter adding on the LED module, you can use your AEG’s battery (split cable included) to make your Hopup chamber become a tracer unit!
(MadBull)