Proof Research Elevation MTR 2.0 .22 Creedmoor 20" Carbon Fiber Match Grade Threaded Barrel, Black Cerakote Steel Receiver w/Picatinny Rail, Tactical Flat Dark Earth Fixed Proof Carbon Fiber Stock, Right Hand The Elevation MTR 2.0 (Mountain Tactical Rifle) is a premium, lightweight tactical rifle. It features our Sendero contour carbon fiber barrel, lightweight carbon fiber stock, Zermatt Arms Origin action, detachable box magazine and a TriggerTech trigger.