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Old 12-22-2012, 12:58   #1
teumessian_fox
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Swapping barrels on Rem 870 HD model

Like the title says, I've got the HD 870 w/18 inch open choke barrel.

I want to put a 20 inch barrel w/rifle sights on it.

The shotgun has the magazine extension. The magazine extension screws into/out of the barrel nut.

Before I attack the barrel nut with tools, does the barrel nut screw off the magazine like the magazine cap on my 870 Wingmaster?

thanx
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Old 12-22-2012, 13:03   #2
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Maybe this might be of help to you.

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Old 12-22-2012, 13:35   #3
teumessian_fox
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Thanx. I made the swap. Now, I'm curious. How critical is it to reinstall the barrel/magazine clamp?
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Old 12-22-2012, 13:41   #4
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If possible, I would attempt to put it on. Since, it is a pump action, there could be stress on the magazine tube from working the forearm back and forth. I have only seen semi auto shotguns without the support clamp. But the forearm is stationary.
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Old 12-22-2012, 20:39   #5
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Quote:
Originally Posted by teumessian_fox View Post
Thanx. I made the swap. Now, I'm curious. How critical is it to reinstall the barrel/magazine clamp?
The biggest thing the clamp does is keep the mag extension from unscrewing.
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Old 12-24-2012, 00:39   #6
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And it will unscrew so you definitely want to put the clamp back on.
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Old 12-24-2012, 10:12   #7
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Teusmessian Fox, check your PM's...
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Old 12-24-2012, 12:33   #8
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With a high quality extension it's not going to come losse any more than the magazine cap itself. Wilson, Vang and others come to mind. There's no rash of magazines caps coming loose but if it is a worry, torque on it before your session.

From my years of shooting, unless you need an attachment point, the clamp is not needed unless you purchased substandard parts and why would anyone do that.
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Old 12-24-2012, 19:15   #9
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Quote:
Originally Posted by Buffering View Post
With a high quality extension it's not going to come losse any more than the magazine cap itself. Wilson, Vang and others come to mind. There's no rash of magazines caps coming loose but if it is a worry, torque on it before your session.

From my years of shooting, unless you need an attachment point, the clamp is not needed unless you purchased substandard parts and why would anyone do that.
+1

If you go to a 3 gun match in your local area you'll see guys running 3-5 (or more) extensions and the vast majority don't run clamps. When I was new to shotgunning I was surprised by it too...
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Old 12-25-2012, 04:56   #10
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Quote:
Originally Posted by Buffering View Post
With a high quality extension it's not going to come losse any more than the magazine cap itself. Wilson, Vang and others come to mind. There's no rash of magazines caps coming loose but if it is a worry, torque on it before your session.

From my years of shooting, unless you need an attachment point, the clamp is not needed unless you purchased substandard parts and why would anyone do that.
It is my understanding that many of the newer 870 express models do not have the detent ball on them. With a mag extension they can come unscrewed.

posted from my stupid smart phone, please excuse any spelling mistakes.
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Old 12-25-2012, 11:21   #11
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You are correct, depending on 870 model. If one doesn't want to have a ball detent installed, you can use the stainless wave washer sold by Brownells. It's listed for the 1100/11-87 but it fits the 870 too. I have not heard of extensions coming loose using that washer although I'd like to hear about it if someones has actually experienced the looseness.
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Old 12-27-2012, 18:47   #12
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Myself, I think that a shotgun with a magazine extention looks "nekkid" without a magazine/barrel clamp installed.
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