AR-10 rifle in 6.0mm Creedmoor with Proof Research carbon fiber wrapped barrel. Seekins Precision receiver and handguard set plus Seekins adjustable gas block for tool-free cycling with or without a suppressor. APA brake and TriggerTech 3 lb drop-in single stage trigger, Radian ambi charge handle, Luth-ER MBA-3 fully adjustable buttstock and Ergo overmolded grip. Upper receiver is hand lapped then barrel fitted and properly torqued. Headspace verified with the Hardened Arms nitride treated BCG, then rifle is broken-in and test fired. Guaranteed to sub-MOA accuracy with match ammunition.