12-09-2012, 04:20 PM
I think your talking about the wrench for the locknut that screws back to the tub, not the barrel nut. The answer is no, you can use a strap wrench or a flat head screwdriver & hammer for tighting up the lock nut on the tub. A regular armorers wrench will not work on the lock nut. I did go ahead & buy the YHM forearm wrench & it works very well, but i have 3 rifles with YHM freefloat tubs on them.
