years ago i traded into an early Stag built Smith and Wesson MP15 carbine (m4 handguards, 16" bbl., detatchable carry handle). had shot ROTC A2's and long story short, i detest it. looking at putting a Gieselle in it (the trigger is attrocious) and putting a new upper on it and see if it will change my mind. Just a plinker here dont need the be all end all and think i would prefer a piston over direct impingement and something other than 16". any suggestions greatly appreciated.
