Airsoft Reviews HD takes apart a CYMA Gearbox as well as tackle the problem of trigger jam in AEGs... "In this episode we disassembly a Cyma CM 046A airsoft gun and we give to you information about the trigger jam problem in many AEG's and how you can deal with it! Also we give you many detailed information of how you can disassembly a v3 gearbox and how you can clean and adjust every moving part."

Sounds delicious, doing a Swiss Cheese mod on your piston as shown by Airsoft Reviews HD in the second episode of their Airsoft Tech series... "On this episode we talk about the swiss cheese mod on AEG pistons. We discuss the pros and the cons of this modification and finally we show you how you can do it yourself! Stay with us for more technical videos. Subscribe and share our videos. Also you can leave a comment above with suggestions and technical questions!