My "assumption" was I'd procure a 16" or 18" 6ARC Barrel from either a WC or a Ranier Match grade, one of my BRA Grendel BCGs- check headspace, add a Riflespeed adjustable gas block, a JP buffer and head to the farm with a can full of Black 105s. If I can get it dialed, slap on my AGM Rattler...