The Patriot Ordnance Factory Revolution DI is a direct-impingement semi-automatic rifle chambered in .308 Winchester with an 18.5-inch match-grade barrel. The Revolution platform uses a proprietary drop-in design that accepts standard AR-15 fire control components while chambering the larger .308 Winchester cartridge. POF's match-grade barrel and heat-dissipating feature set deliver consistent accuracy for precision applications. Type: Rifle Action: Semi-Automatic Caliber: .308 Winchester Capacity: 20 Year introduced: 2016, USA Weight: 118 oz Overall length: 38.5" Status: Active Intended use: Designated Marksman / Competition