I'm planning to swap out a free float tube hand guard on a rock river to a UTG free float quad rail hand guard (carbine length). I've done some poking around online but haven't seen a straight forward explanation of the process yet. My understanding is that I will need the following:
Vise
AR upper receiver block
bench block
barrel nut wrench
I know I need to remove the flash hider and gas block first, but I'm unclear on what comes next. It seems that free float hand guard retention systems vary, and some may be loctited in place. I think you have to remove the barrel nut in the swapping process. If that is the case, do you need to check the head space afterwards if you inadvertently disturb the barrel after removing the nut?
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