Need help with ar15 bcg problem

Davis1891

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Hi guys, just bought my first ar, a dpms Oracle.(Yay!) and took it to the range for the first time this morning.
I did take the bcg apart, cleaned and lubed it prior.
Very first pull off the trigger, the bcg got stuck in the forward position. No fire, no misfire, just got stuck with the live round still chambered.
I did manage to get it unstuck via the mortar way. But it's happened a good 5 or 6 times during 120 rounds of ammo. (.223)
It seems to work fine when I lube the #### out of it for a while, but I'd imagine that it just can't need THAT much oil all the time.
I can't really seem to find a solution to this problem online, or what could be causing it. (I found one thread where one guy said it could be ammo, or just how the rifle is).
So boys.....
What else could it be?
 
ARs do like to run VERY wet... Especially when new. My friend has a VLTOR that needs to be DRIPPING with lube or its FTF city.

Try taking the BCG apart again and making sure you have everything put back together properly. I also suggest you try different ammo.
 
If your AR has to be dipped in a bucket of lube to run reliably, there's something wrong with it.

What ammo are you using?
 
If it's not firing when you chamber a round, it may not be in battery.

I'd make sure the chamber is clean, the rifle is lubed, and try it with one round in the mag. Sometimes the mags can be really tight when full and have too much drag to properly feed the top round.

The fact you have to mortar it to eject the unfired round is not right, though.
 
check head space

check feed ramps and locking lugs on bolt
is there any abnormal wear?

how aabout the rails the bcg slides on inside the upper? check for burs
 
Thanks guys. Nope, no burrs, no dents, nothing that looks abnormal. I'm still really new to firearms, only been shooting for 6 months, and this is my first AR so it's entirely possible that I didnt reassemble it properly. (I don't think that's the case though, I triple checked!)
I'll definitely try different ammunition (5.56 this time) and just keep lubing it I guess. Would it just be part of "the break in" phase?
 
Does it cycle smoothly when it's unloaded?
What are you running for ammo? Have you tried more than one type?
Did you buy it new or used?

Need more info to be able to troubleshoot without seeing the rifle.

First thought is that you are running handloads that are not full length sized or if they are need a small base die. If it's factory ammo I would try something different.

A buddy of mine has an oracle and it runs smoothly without any need for extra lube and it's been like that since the first round fired.
If you're running factory ammo and you try a different brand and it still does it I would take it back to the retailer. If you bought it used contact the seller and request a refund and ship it back to him. Pretty low if someone is selling off their problems on our site.
 
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Does it cycle smoothly when it's unloaded?
What are you running for ammo? Have you tried more than one type?
Did you buy it new or used?

Need more info to be able to troubleshoot without seeing the rifle.

First thought is that you are running handloads that are not full length sized or if they are need a small base die. If it's factory ammo I would try something different.

A buddy of mine has an oracle and it runs smoothly without any need for extra lube and it's been like that since the first round fired.
If you're running factory ammo and you try a different brand and it still does it I would take it back to the retailer. If you bought it used contact the seller and request a refund and ship it back to him. Pretty low if someone is selling off their problems on our site.

Yeah, it totally runs smooth as butter when it's unloaded. My ammo isn't a very high quality, Wartak .223 rounds. Definetly not using handloaded ammunition. The guns new, today was the first time it's been shot. I'll certainly be trying a different brand of ammunition come sunday, likely a .556 this time around.
 
Yeah, it totally runs smooth as butter when it's unloaded. My ammo isn't a very high quality, Wartak .223 rounds. Definetly not using handloaded ammunition. The guns new, today was the first time it's been shot. I'll certainly be trying a different brand of ammunition come sunday, likely a .556 this time around.

Damn, those must be expensive and gigantic rounds.
 
So you've only been using Wartack ammo? Try another brand such as American Eagle or Remington UMC? Could just be poor quality ammo.
 
Yeah, it totally runs smooth as butter when it's unloaded. My ammo isn't a very high quality, Wartak .223 rounds. Definetly not using handloaded ammunition. The guns new, today was the first time it's been shot. I'll certainly be trying a different brand of ammunition come sunday, likely a .556 this time around.
Wartak ammunition are commercial reloads, not too sure how they resize the used brass if at all. Try some fresh factory ammo, look at your extractor and see if it is loose and check your gas rings make sure it is mashed up and causing the bolt to drag.
 
Yeah, it totally runs smooth as butter when it's unloaded. My ammo isn't a very high quality, Wartak .223 rounds. Definetly not using handloaded ammunition. The guns new, today was the first time it's been shot. I'll certainly be trying a different brand of ammunition come sunday, likely a .556 this time around.

It sounds like some different ammo will fix your problems.

Don't worry about finding 5.56 unless it's plentiful in your area, 223 will work just fine, I've run American Eagle 223 through all the AR's I've owned over the years and none of them has ever had a problem with 223. I would suggest staying away from Norinco ammo even though many on here will tell you they've run thousands of rounds of it through their rifles, as we've seen with Chinese guns like the T97 the quality control there is pretty much non existent and you never know what you are getting when you buy that stuff. You've also just learned with the Wartak that saving a couple cents per round may not always be worth it.

i opt to use high temp wheel bearing grease in my AR it stays put and keeps things moving nice. i wish i could be more of help but i have never had that kind of problem. good luck

I wouldn't use grease in your AR, you should be using oil and keeping a nice thin film on the BCG, you will probably have issues if you shoot in colder temps using grease.
If it's been working well so far I'd say you've just been lucky.
I'm not telling you not to use grease, it's your rifle and you're free to do whatever you want with it.

+1
I use Lantac EBCG bone dry in my AR and never faced any problem.
You are still suppose to use lube.

Yes all BCG should be oiled, I have a nickel boron BCG in one of my AR's and even though it will run dry it is supposed to be oiled lightly.
For the cost of a bottle of oil why wouldn't you oil it. The less friction the longer it will last.
 
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It sounds like some different ammo will fix your problems.

Don't worry about finding 5.56 unless it's plentiful in your area, 223 will work just fine, I've run American Eagle 223 through all the AR's I've owned over the years and none of them has ever had a problem with 223. I would suggest staying away from Norinco ammo even though many on here will tell you they've run thousands of rounds of it through their rifles, as we've seen with Chinese guns like the T97 the quality control there is pretty much non existent and you never know what you are getting when you buy that stuff. You've also just learned with the Wartak that saving a couple cents per round may not always be worth it.



I wouldn't use grease in your AR, you should be using oil and keeping a nice thin film on the BCG, you will probably have issues if you shoot in colder temps using grease.
If it's been working well so far I'd say you've just been lucky.
I'm not telling you not to use grease, it's your rifle and you're free to do whatever you want with it.




Yes all BCG should be oiled, I have a nickel boron BCG in one of my AR's and even though it will run dry it is supposed to be oiled lightly.
For the cost of a bottle of oil why wouldn't you oil it. The less friction the longer it will last.
Lantac gives life time warranty on its ebcg. So, I don't care to lube it.
 
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