Hey guys,

First to get this out of the way, this is my first post here, I usually will lurk a forum pretty hard before joining it but I just found this one searching for some answers on google and couldn't really find anything specifically relating to my issue. So, my apologies if there is a different area of this forum where the question would be more appropriate.

Quick backstory, I have had a SW MP 15 for a few years now. My uncle had just gotten a SW MP15T, so I offered to go with him and shoot and teach him the ins and out of an AR-15 because he never handled one in the past.

Anyways, he shoots his for a few rounds before it starts to jam. I start shooting it, and get some jams. I'm not sure how you all refer to them, but I've always called them stove pipes. The spent shell does not fully eject, however the next live round gets carried up, resulting in a jam. I didn't take any pictures, so I can't help you guys there. But I narrowed it down to an ejector issue, after it jammed the ejector would be partially depressed and not flush with the face of the bolt like it normally is.

I was just wondering if you guys could help point me in the right direction to resolve the issue. I'm pretty familiar with stripping down an AR and the ins & outs of the bolt carrier group, but I've never broken the bolt down past separating the extractor from the bolt.

I don't know whats involved with replacing an ejector, or if it requires any special tool. I wonder if it would be easier to just get a new bolt? Not the whole bolt carrier group, just the bolt.

Also, I should say that I did break down both of our ARs. I broke both bolt carrier groups down to remove the bolt from each AR, and swapped the bolt from my fully functioning AR to my uncles malfunctioning AR. I kept the same BCG in my uncles gun that he was using when he was getting jams. When I did that, his rifle was operating perfectly.

Thanks for your help guys
Brian

If it was mine I would lube the ejector and work it by hand and see if that stopped the sticking. It is held in by a roll pin and if it was still trying to stick I would take it apart and see if I couldn't determine what the problem is. Should be a video on it on YouTube. I lube new semi autos heavy until they have a chance to break in and it seems to work for me. Good luck.

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Hue 68 noli me tangere

Sounds like a warranty issue. I'd send it back to s&w for repair instead of spending money and time on your end. Try cleaning and lubing before you send it in.

Also, did you try his carrier group in your rifle? I'd be curious to see if the issue followed in a different gun.

Send it in. "Never handled an AR before" is no basis for troubleshooting and tinkering.

^^^^^^^^^
What he says.

Use an empty case, lube the ejector, and work it back and forth by placing the case head under the extractor and rocking it. Sometimes manufacturing debris will get in the ejector hole.

I also lube new AR's almost to the point where lube flies off the bolt and carrier when firing.