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Hi /k/ I just picked up a new Ruger AR-556 yesterday and im

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Thread replies: 42
Thread images: 6

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Hi /k/

I just picked up a new Ruger AR-556 yesterday and im having a bit of trouble getting the upper receiver to hinge open. You see, when I pull both takedown pins, I can get about 1/32"-1/16" of wiggle space around where the pivot pin is, but when i leave the pivot pin in place and only want to hinge open the rifle, I cannot get even a bit of movement near the rear takedown pin.
Bolt is closed and gun is cocked. Safety is on. I have not fired the gun yet.
I seem to be having the same issue as this guy but this thread never lead anywhere. Same gun too.

http://www.xdtalk.com/threads/cant-separate-my-upper-from-my-lower.361009/

Any help would be appreciated.
>>
Is the D-ring pushing against the lower receiver and preventing movement?
>>
>>34743047
I doesn't seem to be .
>>
You can't separate them at all or you just can't hinge?
>>
>>34743066
Both. Recievers will separate slightly near the hinge pin when both pins are removed but won't move at all near the rear where the charging handle is.
>>
I don't know about that specific Ruger rifle, but it sounds defective. I would either pull the pins and separate the receivers using a rubber mallet and some wood blocks or just contact Ruger support and make them send you a shipping label to ship it back. What you choose depends on how big your balls are. Either way, give us an update.
>>
Oh, to make sure the buffer didn't slip past the retainer you could pull the buffer tube off. Gonna need a castle nut wrench. Also make sure you re-stake the nut when you put it back on.
>>
>>34743098
I'm thinking about taking it out to shoot today to see if a few dozen rounds knocks something loose. The guy in the other thread said that his fired just fine with the same problem. If that doesn't work I'm afraid I'll have to send it in. Will update.
>>
>>34743038
pull out the bolt carrier and charging handle and try again, let us know if it works then
>>
>>34743122
Dude, he can't.
>>
>>34743122
He cant get the fucking thing open. How the hell you gunna expect him to pull the BCG and Handle out?
>>
>>34743122
How lol

>>34743111
I don't have the tools on hand right now. I can see through a little gap in the rifle when the pins are out and it looks like that might be the problem.
>>
>>34743114
I get that you're excited to shoot it, but if you don't shoot it then Ruger will 100% need to take the blame on this unfired rifle being defective.
>>
>>34743111
this is what it sounds like to me. could try pulling the CH back a bit and then trying to hinge the upper off. Curious what the detent looks like.

if that doesn't work,from there, you'd need to pull the castle nut and buffer tube off.
>>
>>34743142
If I can't fix this problem on my own with a stock wrench then I'll send it to ruger. I hear that their customer service rocks so I'm not to worried about it.
>>
>>34743138
Pull the rear pin, pull the charging handle to the rear, apply upwards pressure on the upper receiver, then slowly ride the charging handle forward. With luck you'll find the gap between BCG and the buffer right at the seam between the upper and lower and it will swing apart. It will probably also fire your buffer out of the tube with a satisfying "bloop".
>>
>>34743138
>I don't have the tools on hand right now

you can get the buffer off with a hammer and a chisel or old flathead. just need to loosen it a little, ruger's stake jobs are usually shit.
>>
>>34743168
No luck. Oh well.
>>
>>34743169
What in the actual fuck are you trying to say? "Get the buffer off"? Are you recommending pounding a buffer tube off with a chisel?
>>
>>34743209
bad phrasing, you can loosen the castle nut with a hammer and chisel if you don't have a wrench.
>>
>>34743216
Like sticking the side of a chisel into the holes and tapping on them all the way around the outside? I would but the material feels fragile and I wouldn't want to chip it or fuck up a warranty.
>>
>>34743237
yep, it's ghetto but it works. you won't damage the material as long as you don't go retard strength.

if you've got a warranty, just send it it. I still don't understand how >>34743168 didn't work though. there's nothing else that would impede the upper from levering up.
>>
>>34743258
I don't understand it either. Never had this problem with any other AR type firearm. Really sucks though. But, If I waited this long to buy it then I can wait a few more weeks for ruger to fix their fuck up.
>>
>>34743038
If that is your rifle, it does not look like the bolt is fulling in battery. Pull the BCG back and lock it with the bolt stop. Make sure the bolt is forward and not compressed back.
>>
>>34743368
>fulling
Fuck need more coffee. *fully
>>
>>34743368
>>34743376
Are you talking about this gap right here?
>>
>>34743393
he is. drop the bolt from bolt stop, or jam on the FA to ensure you're in battery
>>
>>34743393
>>34743408
Yes I am. If you are just that tiny bit out of battery it won't let you open you rifle up. It also explains why you could not get it open when riding the charging handle down.

My co-worker had the exact same issue when he was testing out his new build when we went to the range.
>>
>>34743408
I noticed it too. I went mayweather on the FA and no movement. Nothing when I let it drop with the bolt stop either
>>
>>34743435
How was his fixed?
>>
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>>34743438
Does you bolt head look like pic related (sans the nickel coating) when you pull back on the charging handle?

>>34743447
Buy puling the bcg back and using a cartridge to force the bolt head forward. Once it was forward it went into battery and we could open the gun up easily.
>>
>>34743038
Try charging the rifle, let the bolt slam home, give the f/a a whack
Make sure the carrier isn't sticking into the buffer because it's not in battery thus locking the halves together

Can you pop the front pin and pull the upper completely off?
>>
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>>34743464
It looks like this.
>>
>>34743518
So that was not the issue. Can you get the forward take down pin out? It may require a little bit of persuasion with a punch.
>>
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I LOVE YOU /k/!
>>
>>34743594
did you just not have the pins pushed far enough?
>>
>>34743594
Torque down the screws on your gas key, if that shit gets loose enough to cause the BCG group to hang up that badly, you're liable to have your rifle turn into a bolt action at a very inoportune time.
>>
>>34743594
Woot. Now check the bcg and buffer.
>>
>>34743607
I have no idea. I was trying a combination of everything that everyone was suggesting. I ended up just wiggling the both back and forth while lightly tapping the FA and it worked.
>>
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>>34743633
oh well, at least it's unfucked for the moment. make sure to wipe all that sticky preservative oil off and lube it with something proper. have fun and be safe anon
>>
>>34743633
somethings still fucky in there then, but you can shoot it fine

>>34743617
this is good advice, check bcg gas key screws, they should be staked, but it's not impossible that they weren't.
>>
>>34743668
Currently doing just that. Thanks.
>>34743675
>>34743630
>>34743617
I'm looking things over. Looks like it might just be a case of having to break things in. I see pretty rough wear already where it hinges so it's tight.
Thread posts: 42
Thread images: 6


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