We broke barriers when we released the piston driven .308 Revolution. For 2019 we've introduced the Revolution DI (Direct Impingement). By popular demand, you get the same technology, same durability, same features, and same AR-15 size, but in a smaller direct impingement system featuring our 9-position adjustable Dictator gas block and Renegade rail. The original Revolution weighed in at 7.35 pounds, the Revolution DI weighs even less at 6.8 pounds with a 16" barrel.