Thread: Jg m4a1
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Old April 20th, 2009, 20:15   #13
kalnaren's Avatar
Join Date: Dec 2006
Location: Oakville, Ontario
Originally Posted by FlyingCats View Post
I'm pretty sure you pull cocking lever back, which opens the ejection port cover. You'll see a gear which you can adjust. Moving the gear down(I think) makes the hop-up go up and moving the gear up makes the hop-up go down.

Not sure about JG M4s, on them the ejection port cover may just be spring held shut instead of latched.

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