243winxb
Member
The round it poping out of the magazine to soon. Bend the magazine lips in to match the a working magazine. Take measurements. A few thousandths may be all thats required.using new magazines for the first time
The round it poping out of the magazine to soon. Bend the magazine lips in to match the a working magazine. Take measurements. A few thousandths may be all thats required.using new magazines for the first time
My my money starts with the magazine. The rifle went from working to not working so something has changed?The round it poping out of the magazine to soon. Bend the magazine lips in to match the a working magazine. Take measurements. A few thousandths may be all thats required.
...Try some good USGI magazines...
Magazines are not the problem...I was also using new magazines for the first time (Magpul Gen3)...
Check the feed ramp, ammo and mags
Magazines are not the problem...I was also using new magazines for the first time (Magpul Gen3)...
The round it poping out of the magazine to soon. Bend the magazine lips in to match the a working magazine. Take measurements. A few thousandths may be all thats required.
Magazines are not the problem. The Magpul lips are not bent, nor can they be...I was also using new magazines for the first time (Magpul Gen3)...
I would also try before doing anything else bending (ever so slightly) the magazine lips...My my money starts with the magazine.
Magazines are not the problem. Mag lips are not bent, nor can they be...I was also using new magazines for the first time (Magpul Gen3)...
Yes. The extractor spring failed. It's not the magazines.The rifle went from working to not working so something has changed?
So i see.The Magpul lips are not bent, nor can they be.
No Adjustment. They would be headed to my scrap pile.impact resistant polymer construction
. I switched ammo (GECO DTX .223) and fired 25 rounds without a failure, so I suspect the problem is specific to the ammo I was using.
@MistWolf I'm curious what led you to suspect the extractor! I went back to the range today with the same ammo, same magazines (now numbered), and freshly cleaned and lubed rifle. I was able to reproduce the failure half a dozen times, and indeed the problem is failure to extract. After locking the bolt back, dropping the mag, and clearing the fresh round (jammed against the old cartridge), the old cartridge extracted fine with a manual cycle of the bolt. The very first failure looked like a double feed, but it was a new round stuck against a partially extracted case.
This statement right here-
Experience troubleshooting ARs shows that when this malfunction reads its ugly head, it’s a bad extractor spring.
I don’t know man, when I build an AR it needs to shoot from Range pick up/dig out russian steel ammo with rust to black hills match grade ammo.
sure sure I’m exaggerating a little, but does needs to run the cheap stuff.
Hmmm. what are the chances that if he threw a FA BCG it would run without issue? Also curious as to what kind of ejection OP is getting with the potentially suspect ammo.OP’s also comes standard with a semi-carrier.
That's the right spring . They can be a pain to install and easy to damage. Make sure it's not damaged. Next, check the ejector. Also, give us a clear description of the malfunction. Having an "FTE" doesn't tell us much.Quick update. After a long break from shooting the AR, I finally made it back to the range. I'd replaced the extractor spring with this one:
https://www.brownells.com/aspx/search/productdetail.aspx?sid=10818&pid=4840
But immediately had FTE with the WWB ammo, and other brands worked fine (Geco, Wolf steel case, Federal AE). To be clear, I'm not blaming the ammo. Today I swapped in a FailZero BCG and it ran all of the above ammo without any issue.
I'm put the original BCG in a 300blk pistol and it ran fine in that gun, so maybe I'm done trying to figure out the issue.
If you look carefully, you’ll see a spent case stuck in the chamber. That’s never caused by the magazine.Try with a different magazine. Such malfunctions are almost always magazine related.
Didn't see the case in the chamber. If it did it after the extractor was changed, a dirty chamber is the most likely cause.
Well alrighty. Now you mention "looks pretty much like" so would that include a spent round in the chamber as in the image you posted or in your case is the previously fired round being ejected as in empty chamber?I don't have a photo from my rifle, but it looks pretty much like the image below that I found online. The new round feeding in gets bent and has to be discarded.
View attachment 1077358
It's failing to extract the spent round, as in the photo. I'll take a close look at the extractors on the two BCGs I have (one works fine, the other doesn't) and see if I can see any difference.Well alrighty. Now you mention "looks pretty much like" so would that include a spent round in the chamber as in the image you posted or in your case is the previously fired round being ejected as in empty chamber?
I don't know if you have another bolt assembly, but if you do, try that. If problem still occurs its not the extractor.
Yes. The extractor spring failed. It's not the magazines.
This is why I advise upgrading an extractor spring of unknown origin as soon as possible. When it does fail and someone new to the malfunction asks what's going on, the problem gets misdiagnosed, wasting the owner's time.