Remington 870 - stuck fore-end castle nut

[Nephrology]

Have you applied a liberal amount of Kroil??

http://www.brownells.com/gun-cleanin...-prod7610.aspx

PB blaster, but yes.

[LOKNLOD]

I've used the pins on an AR barrel nut spammer on an armorers wrench for an 870 before, if you've got one handy.

[mark7]

PB blaster, but yes.

Kroil > PB blaster . . . by a mile

[Nephrology]

I've used the pins on an AR barrel nut spammer on an armorers wrench for an 870 before, if you've got one handy.

I don't own a AR!

Kroil > PB blaster . . . by a mile

Well, none on hand right now..

[41magfan]

Regarding the factory style tool I posted, the thing that makes it most effective is that part of the tube that extends below the spanner tabs into the body of the forend sleeve. If you have a problem child (rusted nut and swollen forend) the spanner type wrenches too often just torque out of the tab cuts without applying sufficient force to the nut.

[Nephrology]

Regarding the factory style tool I posted, the thing that makes it most effective is that part of the tube that extends below the spanner tabs into the body of the forend sleeve. If you have a problem child (rusted nut and swollen forend) the spanner type wrenches too often just torque out of the tab cuts without applying sufficient force to the nut.

I think that's the problem that I am having. Even when I try to use a lever arm to torque the nut, the tabs of the stamped steel tool that came with the DSF slip out whenever I try to torque it.

[Chuck Whitlock]

The nice thing about the one I had made is that you don't have to take the gun apart further than taking the barrel off. It fits down over the mag tube and inside the forearm.

This wrench:
http://www.brownells.com/gunsmith-to...prod17206.aspx
plus Kroil should do the trick. One tip is to remove the barrel from the shotgun and fully retract the forend so that the action bars are fully supported by the receiver. Installing the forend this way also helps keep the new forend clocked correctly.

[willie]

Not removing fore end with action bars from receiver will cause you to scratch up magazine tube. Too, you will put too much stress on the action bars unless this unit is removed.You're working with extremely fine threads, which if rusted or crudded will cause much difficulty. Triple ditto on the Kroil/Blaster advice. Check out auto parts store section with penetrating oil. After application, hit the area with an electric hair dryer to get it going. Let it soak for 2 or 3 hours. Before using wrench this time, use hair dryer again. Even better is a propane torch lightly applied. Very lightly. If it does not move, stop and rethink. Beware of wrench jumping out of notches.