Caliber: .223 Rem., .22-250 Rem., 6mm ARC, 6.5 Creedmoor, .308 Win., .300 Blackout. Barrel: 16”, 18”, 22” Proof Research carbon-fiber-wrapped stainless steel. Weight: 6.5 to 7.2 lbs. Stock: Synthetic gray with AccuFit system. Features: Latest addition to the 110 bolt-action family, now with lighter weight carbon-fiber barrel. AICS detachable box magazine. Spiral-fluted bolt. Threaded barrel. Swivel studs. Two-piece Weaver bases included.