I wanted to build something adjustable and lightweight so that my son can have something to use. I figured a 6.8 would be a good candidate until he gets his "first" gun.
Factory BCM lower
Factory BCM upper and 15" KMR hand guard
ARP barrel , scout profile 16"
Aero precision mount
Leupold VXR CDS 4x12x40
On the bathroom scale , 7 lb 5oz (without bipod )
Hopefully it shoots!