Forend Wood Rotates on Metal Tube

General discussion about Remington 870 shotgun.
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avick
Newbie
Posts: 2
Joined: Sat Aug 16, 2025 6:12 pm

Forend Wood Rotates on Metal Tube

Post by avick »

I have a 1950s/60s 870 Wing master and attempted to remove the wooden forend from the metal forend tube to refinish it. Despite using PB Blaster, WD-40 and a jig to hold the action bars so I could put more force into it, I've been unable to budge the nut. However, the wood now has rotational play on the metal tube. It doesn't move back and forth, and the gun operates just fine, but it can rotate just enough in each direction to touch the barrel on either side. It seems to be the same problem as this older thread: https://rem870.com/forum/viewtopic.php?p=7413

Does anyone have any suggestions for how to fix this? I don't know if I'll be able to remove and re-tighten the nut without breaking something, if I can at all.
BKinzey
Senior Shotgunner
Posts: 275
Joined: Fri Mar 27, 2020 6:57 pm

Re: Forend Wood Rotates on Metal Tube

Post by BKinzey »

Too bad that guy didn't come back with an update.

When PB Blaster doesn't work I go to Kroil. I've often found it to work. A couple of drops and try the next day. Repeat if necessary. Sometimes it will take a couple of days.

Can't really help with the loose wood.
merc82
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Joined: Mon Aug 18, 2025 2:27 am

Re: Forend Wood Rotates on Metal Tube

Post by merc82 »

You might try using a proper forend wrench or a padded vise to get better leverage on the nut, heat from a hair dryer/heat gun can also help loosen old thread locker or dried oil without damaging the wood.
Sully
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Joined: Wed Sep 18, 2024 6:16 am

Re: Forend Wood Rotates on Metal Tube

Post by Sully »

As already mentioned, you will need a forend wrench.

What we teach in Armorer courses is:
Install the action bar assembly (Forend) all the way into the receiver, so that it is all they way to the rear position, as this will protect the action bars from getting bent while working on the forend nut. With the action bar assembly installed into the receiver and to the rear position, use the forend wrench to to loosen or tighten the nut. The forend nut has very fine threads, so you will be unscrewing the forend nut for roughly 3/4" of fine threads before it comes all the way off.

If tightening the forend nut down, also make sure you have the action bar assembly installed so that it is in the rear most position when tightening the forend nut, as this again will keep you from bending the action bars. When tightening the last little bit, you need to keep the forend centered on the action bars, and not let it rotate off center as if it does it will cause cycling and feeding issues.

https://www.midwayusa.com/product/1006964922?pid=723227
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Greg Sullivan "Sully"
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avick
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Joined: Sat Aug 16, 2025 6:12 pm

Re: Forend Wood Rotates on Metal Tube

Post by avick »

Thanks for the suggestions guys. I'll give Kroil and a hairdryer a go to try to loosen things up.

That forend wrench looks fantastic, but I'm in Canada and haven't been able to find a similar one that's available here (Midway doesn't seem to ship outside the US). The best one I've found that's available here won't work with the forend on the gun (https://canadiansafetysource.ca/gun-care/shockwave-technologies-raptor-forend-nut-tool-500-870) but should work better than the spade bit I've been using so far.
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