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Old 11-02-2015, 10:43 AM
terrierkeeper terrierkeeper is offline
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Default Remington 870 12 gauge 8+1?



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I got an offer on a Remington 870 with a twenty inch barrel and I am thinking of getting it but I want to customize it. It is not the shotgun I wanted but the offer is reasonable. Since I plan to use it as a house gun for home defense I plan to use regular shells rather than magnums so I want to have eight rounds in the magazine plus one in the chamber rather than seven magnums and one. What kind of magazine or magazine modification is possible to do this? Second I also want to fit it with a bayonet so what magazine or modification is necessary for that to be done?
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Old 11-02-2015, 03:32 PM
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Most Remmies with at least standard extension tubes that are available have 6+1 limit with "regular" shells (2.75").

With 18.5" barrel, a 6+1 extension is as long as you can go without the mag tube being longer than the barrel, so with a 20", you could only go one more, if such a one exists.

I don't know of any that will get you to 8+1 regardless of length of barrel, but maybe there are.

- OS
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Old 11-02-2015, 04:04 PM
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My 18.5" Remington Express Tactical has a factory installed 2 shot extension...
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Old 11-02-2015, 05:50 PM
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With a twenty or twenty one inch barrel there are +3 magnum shell extensions and I was wondering if One there might be a magazine extension on the market that could give me a capacity for Eight 2 and 3/4 regular shells plus one in the chamber or Two some modification could be made to the +3 magnum extension that could give me that capacity. That plus the ability to take a bayonet is what I want.
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Old 11-02-2015, 06:01 PM
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The reason I am asking if an Eight Plus One capability could be possible is simple math. Seven 12 gauge magnum shells end to end occupy twenty one inches. Seven regular shells occupy Nineteen and a quarter inches which leaves me with one and three quarter inches of free space so how might I be able to get that extra inch for an extra shell?
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Old 11-02-2015, 06:14 PM
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I put an extension on my 1100 making it 9+1. The extension is about 1/8" past the end of the barrel, which doesn't concern me at all. I do know that the newer Rem's have a punch mark that has to be removed to allow clearance for more cartridges to be loaded into an extended magazine.

My only issue is that it is quite front heavy with a full tube.
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Old 11-02-2015, 06:25 PM
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You can get a bayonet mounting kit from S&J:

http://sjhardware.com/store/modules....3456c5e988a49c

Ain't cheap, and you'll get a lot of flack for it, but if you really want a bayo this is the kit to buy.
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Old 11-04-2015, 11:03 PM
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This is what I put on my 870 and 1100. Mind you I do have the long barrels yet. 870 is 26" I believe and my 1100 may be 30" IIRC. This has the option of adding 2,3,4 or 5 to your current magazine capacity. They have both worked flawless for me. Them pheasants don't stand a chance!

http://www.midwayusa.com/product/217...uge-parkerized
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Old 11-05-2015, 02:39 PM
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robertsonstradingpost, a Gunbroker.com vendor, has both Mossberg 500 & Maverick 88 demo models at REALLY good prices.

They come with synthetic stocks, 20" barrels, heat shields & 8-round tubes for under $300.
Check them out.
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Old 11-05-2015, 03:34 PM
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Quote:
Originally Posted by Ivan RoachCoach View Post
robertsonstradingpost, a Gunbroker.com vendor, has both Mossberg 500 & Maverick 88 demo models at REALLY good prices.

They come with synthetic stocks, 20" barrels, heat shields & 8-round tubes for under $300.
Check them out.
Note:

- It's "robertsontradingpost"

- Both the 500 and Maverick 20" models have 8 round "capacity" for 2.75" shells, but that's only 7 in the tube. And his descriptions do accurately state that.

Remington does same thing, their "7 round" 18.5" models are actually 6+1, etc.

Those are the max for those barrel lengths unless you use a tube that's longer than the barrel. Both Mossberg and Remington conveniently gloss over that on their specs on site.

He has purt good prices though, that's true enough.

- OS
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Old 11-05-2015, 03:46 PM
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Quote:
Originally Posted by Oh Shoot View Post
Note:

- It's "robertsontradingpost"

- Both the 500 and Maverick 20" models have 8 round "capacity" for 2.75" shells, but that's only 7 in the tube. And his descriptions do accurately state that.

Remington does same thing, their "7 round" 18.5" models are actually 6+1, etc.

Those are the max for those barrel lengths unless you use a tube that's longer than the barrel. Both Mossberg and Remington conveniently gloss over that on their specs on site.

He has purt good prices though, that's true enough.

- OS
You are CORRECT, sir, thank you for the clarification.
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Old 12-09-2015, 02:24 PM
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My 870 works great with the "mini's" that I have made. I can get an extra couple of rounds in my extension with them. I just take 2 3/4" shells, remove the extra length in the shot cup, cut the crimp off and and reassemble with a new crimp. I think last time I made some mini's, I used a roll crimper on a drill with a pressboard card on top of the shot. These babies cycle every time in the Wingmaster. Pretty sure that the overall length of my mini's is 2".

Oh, I've also replaced some of the birdshot with an equal weight of buckshot. I know, all you purests will be flipping out but they work great and it's a cheap way to make your own buckshot mini's.
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Old 12-10-2015, 06:14 AM
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This entire thread makes my head hurt.

An 870 holds five in the tube. To get eight, you need to add three to the five. Anything confusing about that?

Welcome to the forum 19 times in a seven word sentence of 5.4 letters each, TK!
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Old 12-10-2015, 06:15 PM
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Quote:
Originally Posted by randkl View Post
This entire thread makes my head hurt.

An 870 holds five in the tube. To get eight, you need to add three to the five. Anything confusing about that?
It is indeed, since a standard 870 Express/Wingmaster holds only four in the tube.

With factory +2 extension models or your own added +2 extension, 6 is the maximum tube capacity using an 18.5" barrel without the tube extending beyond the barrel. A +3 extension to get 7 in tube requires 20" barrel to do same.

- OS
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Old 12-11-2015, 02:32 AM
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Quote:
Originally Posted by Oh Shoot View Post
It is indeed, since a standard 870 Express/Wingmaster holds only four in the tube.

With factory +2 extension models or your own added +2 extension, 6 is the maximum tube capacity using an 18.5" barrel without the tube extending beyond the barrel. A +3 extension to get 7 in tube requires 20" barrel to do same.

- OS

Told you my head was hurting.

My post was two long paragraphs longer explaining how mag tubes aren't measured with "magnum" shells and that "using 2 3/4" shells would allow more in".....and how magnum shells aren't 3" long so "seven equals 21 inchs".....and how the follower and spring take up room, too....and how in all common configurations, an 870 will always hold one less than a comparable Mossberg.....and how a Mossberg can be had at any discounted price he was offered for an 870. But then I figured, why bother? So I backspaced it all out. The "870 holds five in the tube" was lost somewhere in editing.

Thanks for clarifying that.
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Old 12-11-2015, 04:28 PM
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If the 20" barrel is a slug barrel the remington +3 extension tube will have problem with the barrel clamp. The ATI mag ext works but standard barrel clamps will not work either.
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Old 12-11-2015, 07:27 PM
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Finally got me my shotgun, Remington 870 express 8114 turkey gun with twenty one inch barrel. Now a few questions. 1. What kind of wrench is it that is used to remove the Remington 870s foreguard? 2 What kind of dremmel do I need to clear the tube so I can connect my Remington magazine extension for the shells to pass through without obstruction as well as make my bayonet fit the magazine.
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Old 12-14-2015, 07:50 PM
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Not sure about a bayonet mount but you probably won't need or use it.
Check out Wilson Combat- their stuff is quality, I can get 7 plus 1 2,3/4 rounds in my 18'' 870 with the plus 2 extension and the extension is just about even with the barrel end.
The factory Remington extensions will be a better match to the factory finish but I'm not a fan of a barrel clamp.
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Old 12-14-2015, 07:55 PM
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Oh and you will have to either grind or drill out the detent to be able to use the extension no mater what brand you get. But it's an easy job to do.
Check out www.aiptactical.com This guy knows his stuff when it comes to building an 870 for fighting
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Old 12-14-2015, 09:17 PM
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Quote:
Originally Posted by browningv308 View Post
Not sure about a bayonet mount but you probably won't need or use it.
Check out Wilson Combat- their stuff is quality, I can get 7 plus 1 2,3/4 rounds in my 18'' 870 with the plus 2 extension and the extension is just about even with the barrel end.
Very confusing post, does not compute.

If you added a plus 2 extension to a standard 870, which holds 4 in the tube, you would only have 6 in the tube.

And no matter how you do it, with an 18" (actually 18.5") barrel, I see no way that anything beyond 6 will not extend past the end of the barrel, unless maybe you're not using a spring and follower in there?

This is the Remington "7 Shot Synthetic" model, which has 18.5" barrel and factory +2 extension, ie, 6 in the tube + one in the chamber.




- OS
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