At last received my new DPMS 4 rail handguard. Alas, the barrel nut would not fit over my DPMS bull barrel, so I sent it back to have Dave fix it up. In the meantime, I'm wondering about the possibility of the handguard rotating when I don't want it to, especially with the use of a forward pistol grip. I thought of locking the handguard and the upper receiver together with some type of clamp-on rail. Is this worth the trouble?
(I posted this topic on the Built-It Yourself forum, but only received one reply.)