Mossberg 500 mag extension [Archive] - Glock Talk
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Neocon
03-07-2006, 21:34
Does anyone know if you can extend the mag on a mossberg 500. If I could do that my gun would be the perfect platform for the "ultimate" home defense weapon.
Ben51925
03-08-2006, 07:20
It can't be done. ~sd
Glockdude1
03-08-2006, 07:34
Originally posted by Ben51925
It can't be done. ~sd

+1. Extentions cannot be put on Mossberg shotguns. What you want is a Mossberg 9 shot 590.

http://nas4.atlanta.gbhinc.com/GB/044775000/44775494/pix254073282.jpg

;N
smoke
03-09-2006, 15:45
Originally posted by Glockdude1
+1. Extentions cannot be put on Mossberg shotguns. What you want is a Mossberg 9 shot 590.

http://nas4.atlanta.gbhinc.com/GB/044775000/44775494/pix254073282.jpg

;N

That's somewhat true, but if you look around at gunshows, you can sometimes find the long extended mag tubes and the barrel to go with them for the 500's. I've found a couple over the years.
Rob1035
03-09-2006, 20:41
whats the capacity of a regular 500?
Glockdude1
03-09-2006, 21:24
My 500a holds 5, 2 3/4" rds in the mag.

;N
smoke
03-10-2006, 07:52
Originally posted by Glockdude1
My 500a holds 5, 2 3/4" rds in the mag.

;N

That's correct - Regular 500's are 5 + 1 of 2.75" Shells.
BRAVHART
03-16-2006, 04:45
Actually I have a Mossberg 500 pursuader that has the same length tube as the 590..
Blitzer
03-16-2006, 05:31
Knox Industries Sidewinder (http://www.knoxx.com/NewStyleKnoxx/Products/SideWinder.htm)

See the videos! :cool: ;f
FL Zinc
07-16-2006, 12:55
Sorry to bring this back up, but I picked up a 500A at a gunshow yesterday and it only takes four in the mag... Any help?
Glockdude1
07-16-2006, 15:39
Originally posted by FL Zinc
Sorry to bring this back up, but I picked up a 500A at a gunshow yesterday and it only takes four in the mag... Any help?

Take it apart and check if a small plug might be in the mag. Check if the spring is binding. If you can, find another Mossberg and compare it side by side. Gunshop, pawn shop etc. Last but not least, post a few pics of that Mossberg.

This is mine, with a Butler Creek sidefolder and a M-16 (A-1) style flash hider.
http://i1.tinypic.com/206n9fk.jpg

http://i1.tinypic.com/206nbxl.jpg

:cool:
salvo
07-16-2006, 17:37
Hmmm, from the Knox site, to bad looked like a nice product:


Updated: 06/13/2006
Latest News and Announcements

Sidewinder Discontinued - After several months of discussion and debate, we have decided to discontinue the Sidewinder System as a Knoxx Product. We are unable to find a vendor that can consistently provide us with parts made to specifications and we will not sell a product that doesn't function properly or reliably. The units we have sold passed rigorous testing and have all met our high standards.
smoke
07-17-2006, 09:53
Originally posted by Glockdude1
Take it apart and check if a small plug might be in the mag. Check if the spring is binding. If you can, find another Mossberg and compare it side by side. Gunshop, pawn shop etc. Last but not least, post a few pics of that Mossberg.

This is mine, with a Butler Creek sidefolder and a M-16 (A-1) style flash hider.
http://i1.tinypic.com/206n9fk.jpg

http://i1.tinypic.com/206nbxl.jpg

:cool:

Where'd you get the fake flash suppressor? What's it made out of?
Glockdude1
07-17-2006, 10:07
Originally posted by smoke
Where'd you get the fake flash suppressor? What's it made out of?

It is made out of steel. I bought it off gunbroker.com a few years back. Paid about $30 shipped.

:cool:
FL Zinc
07-17-2006, 21:10
Ok, explain to me please the significance of the limiting plug...
smoke
07-17-2006, 21:18
Originally posted by FL Zinc
Ok, explain to me please the significance of the limiting plug...

In some states it is illegal to hunt with a shotgun or rifle that holds more than a certain number of rounds. That's usually is 5 if there's a limit. Since a Mossy holds 5+1 - 2.75" shells, the mag may be "plugged" to limit capacity.

For migratory bird hunting, the limit is 3 rounds in my state, so a longer plug is needed in that case.
FL Zinc
07-17-2006, 21:57
So its neccessarily needed, and it will still function fine without it at 7+1?
smoke
07-18-2006, 03:53
Originally posted by FL Zinc
So its neccessarily needed, and it will still function fine without it at 7+1?

If you have the extended mag version - yes. 7+1 - 2.75"

Standard mag version is 5+1.
FL Zinc
07-18-2006, 09:30
Outstanding. Thanks, guys.
chance3290
07-20-2006, 13:14
While nothing can be done to extend the capacity of a 500, VangComp sells a +1 for the 590. I picked one up for my 5+1 18 1/2" 590, making it a 6+1. Not only does it add one round, it also adds 13% to the CDI factor.
Ron3
07-21-2006, 20:41
I think you can buy a barrel suited for use with the 7-shot tube?

I recall somebody on this board doing just that and total cost was about $165. 18.5 in barrel too.

Ron3