My M4 won't feed. HELP

[JAA]

For some reason, one of my M4's will very rarely feed. Its and Echo1 lower and upper with a Lonex gearbox shell and all Lonex internals. It has the stock Echo1 hop up unit with a madbull blue bucking. I have tried ALL of my mags, and it will very rarely feed. But all of my magazines work fine in my KWA's. Any tips or advice would be very much appreciated.

[THE MERCHANT]

Could be your anti-reversal latch TROLLoLOLOl

[JAA]

Joey, I would prefer you not post "trolling" replies on my posts. Thanks.

[xandman]

Not feeding can be a whole slew of things.

-CHECK-
Air nozzle (check for movement by removing a mag and turning it upside down and see if you can see it move)
Tappet plate (Pull the upper off and press the air nozzle and see if it has some spring to it)
Sector Gear (check the sector delayer and overall wear)
Hop/barrel unit (look at the unit and check it with different hopup buckings and nubs)

Let me know how that works and if you are still having issues PM me and I can try my best to help you out more.

[JAA]

Thanks man, I really appreciate the help. I think I just need a new hop up. But as of now, the gun only wants to feed with high caps. It hates mid caps for some reason.

[theone19]

Try spacing the hop up back. My g&g had that problem. Threw 2 o rings on the barrel next to the hopup and it feeds with any mag now

[Gilbert]

Just to rule out its not the mag. With the mag out of the gun, fill the mag then wind it all the way up. Then slide the little tab on the top that is holding the bb's in the mag and release them. Just to make sure the bb' are getting stuck in the mag. Is the mag loose in the magwell. A lot of people run 1 strip of electrical tap around the mag towards the top because the mag is loose in the magwell. This will center the mag. Just run 1 strip around 1/2 way on the part of the mag that's in the magwell.
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