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Echo1USA Tech Videos - M4 Gearbox Assembly

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Uploaded by on Nov 5, 2009

http://www.echo1usa.com

Now that you've learned how to take down your Echo1USA M4 Gearbox let Brian, the Echo1 Tech, show you how to put it back together. In this video, Brian shows you how to put back that gearbox back together from start to finish. Remember to check out Brian's shenanigans at twitter.com/BRIANatECHO1.

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Education

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License:

Standard YouTube License

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Top Comments

  • curse you anti-reversal latch....

  • this is the best gearbox set up video i've seen. the other ones are just crappy pictures with text instructions and crappy music. this dude actually talks and the pictures clear. 5 stars

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All Comments (34)

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  • Is this gearbox good to a weaker M120 spring?

  • lol... the trigger always causes MUCH more trouble than the anti-reversal latch, for me at least :)

  • i totally forgot to put my anti reversal latch back in mine and it works great lol

  • Fuck you tapid plate.

  • Use subtitles...lol :DDDD

  • nevermind. it was later in the video

  • @tpkirk2k is there supposed to be a spring on the anti-reversal latch?

  • @barelylogical I see, thanks for replying :D

  • @DarthMooglenator anything that uses a version 2 gearbox

  • ahhh, good times... i remember buying my matrix m4 gearbox... reshimmd it and almost got it back together... at latch kept popin out on me.. threw that bitch across my room and broke it... good times...

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