Originally Posted by
BPTactical
I have dealt with a couple of them before.
Regardless of what forearm you choose if it is a true ?free float? then the FSB must be removed to swap out the barrel nut (which will be supplied with your forearm, they are proprietary).
Now removing the factory FSB will range from ?wasn?t bad, took me about 10 minutes? to ?OMFG this Mother&$@# is never going to come off!?
YMMV
The biggest issue is removing the pins that hold the FSB in place, they are typically tapered can present some challenges. The common mistakes I have seen-
Trying to drive them out the wrong direction.
Trying to just ?tap? them out with a small hammer and punch. The bastards are tight and take a serious punch and a sharp, dedicated blast from a 16oz or better ballpeen hammer.
That?s why I said to go see the Bowers boys, they can help with your selection and have competent folks who will install it for you at a reasonable cost with the correct tools so nothing gets damaged.