Arcturus RS CNC Steel Gear Set w/ Delay Chip for Version 2/3 Airsoft AEG Gearboxes
(Model: 13:1)

"These are decent. With Higher RPS builds I would make sure to use green loctite on the screws that lock the sector gear together. They will work in regular v2 gearboxes. As is they will NOT work in the v2C that the arcturus CAT system uses. THEY NEED TO BE SHORT STROKED BY 2 teeth.

"Could be great! However in a CYMA platinum or APS gearbox these to not work. If you’re trying to upgrade your budget build, go with other brands. If you’re swapping other Arcturus gear for these. It’ll work. The neck of the spur gear is too long and does not spin. I nearly burnt my battery because it was not moving. Unfortunately the website does not narrow down which TM spec gearboxes it’s compatible. But for sure not CYMA platinum V2 and not APS Silver Edge Gearboxes. If you plan to upgrade either buy these WITH an Arcturus/other compatible shell. Or consult a tech/call Evike to double check if it is compatible with your current gearbox shell! Good luck!