I have an order for a Daniel Defense M4a1, which will be in within the month. I am planning on swapping the barrel for a 14.5” Noveske 300 blackout barrel. I need a gunsmith who can both replace the barrel in a quality manner and who can permanently attach a flash hider mount for me, in order to maintain the 16” “rifle” length. Does anyone have recommendations? I am assuming there at least has to be one quality m4 gunsmith near Ft. Bragg.