I have about half the parts to build a 308 starting with a 14 1/2 barrel with a pined/welded flash hider/ Hand guard, MBT2s trigger and other small parts.
Aero procession for a upper/ Lower is $325
Matrix Aerospace upper/lower is $175
So sense my wife keeps me broke i really want to get the Matrix stuff. Used it in the past on ar15s and never a problem.
Any reason not to use it for a 308?