Proof Research AR Type Rifle Barrel 6 ARC 14.5" 130377
Proof Research
$749.00
This is a new Proof Research 6 ARC AR Type steel barrel that is 14.5” long. It features a 7.5 twist rate, .750 gas journal, .082 port size, 5/8-24 muzzle thread, and weights 2-5lbs. Components that are recommended are full mass bolt carrier group, full mass buffer, and an adjustable gas block.
The manufacturer part number is 130377