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i need ar15 help

Re: i need ar15 help

Has it worked before?
Have you tried different ammo?
Is it AE 5.56mm or AE 223 Rem ammo?
Have you tried different magazines?
Give some more to go on here...
 
Re: i need ar15 help

Just my suggestion since the ammo you are using seems to be ok:

First take the ejecter claw out of the bolt. Make sure there is no brass, etc behind it. Make sure its not worn or broken.

Then take the ejector pin and spring out of the bolt. Sometimes debris gets in there and the spring wont work properly. There are several videos of how to do this on youtube if your are not sure.

Those two things unusally work for me
 
Re: i need ar15 help

Check your gas key on top of the bolt carrier. It's the thing that looks like a little snorkle. If that comes loose, the rifle will not cycle. Bushmaster's had a problem with not staking the key properly. If you find it loose, you can tighten down the two screws as a temporary fix, but they'll have to be staked properly or it'll happen again.
 
Re: i need ar15 help

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Badshot308</div><div class="ubbcode-body">Check your gas key on top of the bolt carrier. It's the thing that looks like a little snorkle. If that comes loose, the rifle will not cycle. Bushmaster's had a problem with not staking the key properly. If you find it loose, you can tighten down the two screws as a temporary fix, but they'll have to be staked properly or it'll happen again. </div></div>

This was my first thought when I read your post.

My second thought was a loose/not aligned gas block.