Madbull Ultimate Ball Bearing Spring Guide for Airsoft AEG Gearbox (Type: Version 2)

"Good upgraded spring guide. Got it to replace my stock one which broke when I put a more powerful spring in. I've had no issues since. Cool color too.

"Really nice quality part, even the tech that put it in for me liked it and thought I paid alot more for it. Put it in a lonex gearbox, the gun shoots 437fps and it handle a it great. I've had other ball bearing spring guides actually shatter with less fps.