AA 12 1/2" forward grip and FDE Grendel mags

[lrgrendel]

I possibly want to change out my forward grip or tube. Will taking it off affect the accuracy or integrity of the upper as I am sure Loctite was used at AA when it was assembled. Also should I get a shorter or longer one. This is only used with a bipod so where the bipod attaches is probably important?? Also looks?? Too long might look....

I believe heat might be needed to remove the grip?? I am very hesitant!!

Also has any one seen Grendel mags in FDE?

Thanks.