Thanks, guys. A local gun dealer leant me a tool. I'm going to soak the threads in Break Free for a day and see if I can budge it. Can't wait to get the new forend on...tacticool grip to go with the knox stock!!
Bad boy. Cool tool in the link. How much torque can you put on that one?
REMINGTON/MOSSBERG FOREND WRENCH
* Mfr:BROWNELLS
* Piloted To Prevent Stock Or Nut Damage
Wrench adapted from Remington factory design, with pilot that keeps “teeth” square to the forend nut, virtually eliminating damage to wrench, forend or forend nut. But, if one of the wrench teeth should ever break, turn the “sleeve” around, there’s another set. Models for Rem. 870 or Mossberg 500.
Catalog page 436, 437
http://www.brownells.com/.aspx/pid=968/Product/REMINGTON_MOSSBERG_FOREND_WRENCH



























