How to Install/Change a Forend on a Remington 870 (Video)
Updated “How to Change a Forend on a Remington 870” Video
Unload your shotgun making sure that there are no shells in the magazine tube and chamber.
1. Disassemble your Remington 870 shotgun and take out the old forend.
2. There is a nut on the front of the forend. You need to unscrew it using forend tool or pliers (insert them in two notches on the nut).
3. When you have the nut unscrewed just slide the forend off.
4. Slide on new forend and reverse the process.
Following video shows how to change a forend on Remington 870 using forend removal tool: