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Discussion Starter · #1 ·
Are all Mossberg 500 shotguns, regardless of production date, capable of having its magazine tube extended? I am thinking about picking up older but well-cared for Mossberg 500 with wood furniture. I like to add a few more round to its capacity.
 

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I have heard that the extension on the 500 can be done, but would require the barrels specifically made for that (on some of the persuader/cruiser models) If you look at how the barrel screws into the gun, you can see why you would not be able to just throw on an extension and strap the barrel back on, like you can do with the Rem 870. IMHO it is not worth the cost of a new barrel, and the extension. You might as well buy a different gun for that cost. But honestly, if 6 shots can't do it, neither can 8!
 

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On Point
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Link is for sidewinder kit installed and in action.

Inittolive is correct. Another option if you can find one is Knox's Sidewinder conversion Kit, but Knox has discontinued them, but you might be able to find one for sell. It would be cheaper to buy another shotgun.
 

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May the Lord be with us
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Suggestion... Go for the 590; the barrels are thicker and the gun is made to mil-spec. Indestructable, will last 3 lifetimes & has the "feels great" quality...
 

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FANG FACE BULLETS!
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I will agree with Goethic on this one. I have a 590 SP and I have had it for about 10 years. NEVER a problem of any kind with it. It will take alot of after market parts as the 500 BUT not all.

This is a picture of mine.
 

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Discussion Starter · #6 ·
is the 590 what the military use? I keep getting the 500 and 590 mixed up? The one I am looking at only holds 4 shots and I am looking to extend it to 7 or more since it has a 28 inches barrel.

I remember my 870 was extremely easy to add the extension to the magazine tube; just unscrew the cap and add the much longer one. I didn't and still don't like the safety position of the 870 and the folding stock was long for me so I sold. It would cost me money to get a stock I want and I'd end up having an extra stock I may not be able to sell. It would be wiser to get a complete gun of a setup I like so now I am looking.
 

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FANG FACE BULLETS!
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is the 590 what the military use? I keep getting the 500 and 590 mixed up? The one I am looking at only holds 4 shots and I am looking to extend it to 7 or more since it has a 28 inches barrel.

I remember my 870 was extremely easy to add the extension to the magazine tube; just unscrew the cap and add the much longer one. I didn't and still don't like the safety position of the 870 and the folding stock was long for me so I sold. It would cost me money to get a stock I want and I'd end up having an extra stock I may not be able to sell. It would be wiser to get a complete gun of a setup I like so now I am looking.
Yes it is. The tube on the 590 is 8 shots.
 

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Human bean of planet Urf
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is the 590 what the military use? I keep getting the 500 and 590 mixed up? The one I am looking at only holds 4 shots
The 500 holds five in the tube and one in the chamber. It's a 5+1 gun. If the one you saw was four, it's got a plug in it. It can't be extended beyond 5+1 as it is, though. To do that, you'd need to switch the barrel and mag tube for a 7+1 Persuader barrel and tube or an 8+1 590 or an 835 barrel and tube which allows extension tubes or a 5+1 590 that allows extensions etc.

That's the beauty of the 500 system. You can mix and match and create just about any gun you want/need.

rich
 

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My mossberg 500 had a dowel rod in the tube preventing the full 8 shell capacity. Took about 5 minutes to remove it. Now it's 8 shot.
Some rule about hunting fowl prevents them from selling them with the 8 shot factory.
Its an easy thing to do.
LOVE my MOssberg, pistol grip and stock!
 

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Suggestion... Go for the 590; the barrels are thicker and the gun is made to mil-spec. Indestructable, will last 3 lifetimes & has the "feels great" quality...

I agree you should get the 590. But what is the point of a thicker barrel on a shotgun? And mil spec mean nothing sorry.
 

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WTH! I have an older 500 and love this old woody, 28" is a bit long but after turkey season it will see the 20" mark. Will be a fully functional home shotty. 6 is fine with me, all this add on bull sh** if you like it pile it on. For me good target site will do it. Just for me if 6 don't cure it, it's a cold i can't get rid of anyway.
 

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I would go with the 590, I have both and the 590 is better made on top on the fact it holds more rounds, for the price to improve you 500 with new parts you would be well on your way to the price of a 590. Keep the 500 for hunting birds and get a 590 for two legged problems
 
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