I just purchased a CMore quad rail float tube. I need to know what I need to install this. I'm assuming a set of roll pin punches for the front sight removal, a float tube wrench and a torque wrench. Anything else? I have a torque wrench, I'm thinking about the DPMS combo wrench for the float tube wrench. Anyone have a Cmore quad rail, how hard was it to install?
Also....does the barrel have to be removed to install this?

You will need to uninstall your barrel.  the free float tube lock on to your receiver and act as a barrel locking nut.  so remove your flash hider,  front sight post, barrel, and install with C-more Q-rail.

Hope this helps.