Do you have barrel specs? Chrome lined, etc...?
14.5" (mid lenght) with a 12" flatop round handguard (if its a low profile gas block) or a 9" quad rail if with a A2 front sight.
14.5" mid-length Dissipator. So 11" rail with FSP.
The 12.5" Kino too as mentioned.
7.5, 11.5 and 14.5 sounds good to me. Quad rails on the 11.5 and 14.5 and round on the 7.5.
12.5" Kino for those who've never seen a complete one.....
11.5" Would like one with a Low profile gas block instead of the standard FSB
The first principle is that you must not fool yourself and you are the easiest person to fool.
- Richard Feynman