I'm working on my 6th AR15 build now, for my dad. And accumulating parts for a .308.
You'll like the MWI Gen3 handguard. Super simple mounting system and seems foolproof to me. The torque plate ensure anti-rotation and locks onto the backside of the barrel nut to keep it from sliding forward. If they'd go to that system on thier .308 handguards I'd have one. As it is I'm going with SLR.
