590 locked up help

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memphisjim

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At a buddy's in Denver. He has a mossberg 590 thats locked up
You can't pump it he knew the chamber to be empty
I dry fired it and still it's locked up.
Help!
 
Nothing Slide release ineffective
I'll add it it used to work in his possession
It's locked up
 
he knew the chamber to be empty
I dry fired it


:what: :what: :what:

Unless I checked the chamber by measuring with a cleaning rod or the like first ... I would not have pulled that trigger without knowing for myself whether there was a round in the chamber. I wouldn't take the word of George Washington himself that a shotgun was empty without checking. But then, I'm an old phart who wants to get even older. :D

Got the owners manual handy? If not, it's on Mossberg's site, if you need instructions. You should be able to pull the trigger plate assembly out of the gun and get to the bolt/bolt slide to see if anything is out of place or is tying up the gun. Try field stripping the receiver and reassembling it, and see if that clears up the problem...
 
I didn't point it at my head when I pulled the trigger
No books Ill look for a way to take the trigger off
 
I didn't point it at my head when I pulled the trigger

Ever been around someone who got a BOOM instead of the click they expected when they pulled a trigger? I have. And things like that could give an oldphart a heart attack, even if the gun was pointed at the floor.
 
Put the safety on, push out the through pin in the receiver, pull down on the trigger guard at the rear. Trigger group should come on out. But, since the hammer is now down (fired), pull the trigger group over a table or other cleared space so you don't lose anything. Most likely the hammer strut, and spring, will be loose in the trigger group because of over-travel. As lee said, once that's out you may be able to figure out the malfunction.

The retaining pin for the trigger group is the small one with dimpled ends.
 
I've had instances where I've fired and have had the brass be sticky in the chamber. Some to the point where I couldn't pump it out. I was taught in a class I took to hold gun by pump pointing up and run the butt into the ground. Its worked for me. Not sure if it will help you or not.
 
I'll try that here in a bit
As far as dimpled ended pin I do t think his are stock as he has some sort or shell carrier in it but only one pin looks like it would function to hold in trigger group
 
If he has a side saddle you will likely have to remove the pins that hold the side saddle which have replaced the OEM pin.
 
Lee, could be that he went outside pointed the gun in a safe direction and pulled the trigger expecting a click but prepared for the boom. Thats what I would do. I did have a sks go off when I helped the bolt forward, scared the bejeeves out of me. Learned alot that day.

op......Does the slide release feel like it's operating correctly?
 
Lee, could be that he went outside pointed the gun in a safe direction and pulled the trigger expecting a click but prepared for the boom.

If he'd said that in the first place I wouldn't have gone all goggle-eyed. :D You ever hear the Army explanation of ASSUME? :D

Safety first, safety last, safety always, especially with a shotgun. Because shotguns blow BIG holes in things, even if it's just peace and quiet. Don't take ANYONE'S word that a gun is empty. When I was growing up, my gunsmith was Ralph Walker in Selma, AL. In the front room of his shop where customers did business, there was a shelf behind the counter. That shelf held a row of one-gallon glass pickle jars full of assorted rounds of ammo. Tacked to the front edge of the shelf was a sign that said something like REMOVED FROM "UNLOADED" GUNS.

It takes but a few seconds to 'feel' a chamber with a cleaning rod and KNOW the gun is really empty.


Its a mossberg use some sort of leverage tool or a hammer

Steel parts in an aluminum receiver? Yep, that's what I'm gonna hammer/lever on all right. NOT!

C'mon, guys. Gotta do better than the "Bigger Hammer" School Of Home Gunsmithing. If anyone ever wonders why I warn people shopping for used Remingtons or Mossbergs that the main thing they need to look out for is kitchen table gunbutchery, this is why...
 
not sure about the slide relief it felt kind of spongy
had to give up he didnt have allen wrenches and there was a foot of snow
 
Push the slide forward as hard as possible and while holding steady pressure forward - attempt to push the slid release button. If this was stated already - sorry, distracted posting makes me dizzy and inattentive.
 
I'm betting there's an empty hull in the chamber. Fired/oversized base and is jammed in the chamber.

Or he's torqued down the bolt for the sidesaddle so far it's squeezed the receiver.
 
Or he's torqued down the bolt for the sidesaddle so far it's squeezed the receiver.

Possibly a good bet. And that's often more of a problem in a shotgun with an aluminum receiver...
 
Or he's torqued down the bolt for the sidesaddle so far it's squeezed the receiver.

Possibly a good bet. And that's often more of a problem in a shotgun with an aluminum receiver...

Is it bolted on or use pins? I'm not as familier with the mossberg as I am an 870. I would definitely check into that first. I had a problem with my win 94 when I tried to use the screw that was in it to hold the scope mount without the mount. It was to long and bound things up.
 
I once had my safety on the tang start to unscrew itself (shot guns have a way of vibrating all kinds of things off of themselves). I don't recall exactly what was the symptom that made me notice it. You might want to check that as well. I doubt it's this though.
 
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