6.8spc Upper build:
$100 Spartan billet upper
$200 6.8 ARP 18” scout barrel 5/8-24 threads
$50 Stag bolt
$100 Kies nickel boron bolt carrier
$100 carbon fiber handguard
$60 gas block/tube
$30 RCBS dies
$60+ AeroPrecision mount
ASC magazine
$650+ invested
Less than 100 rounds down it.
For sale $450