The revolution is pof's 308 that handles like a 5.56 - because it is the same size and weight as one by using a 5.56 bolt carrier and other 5.56 parts allowing for a shorter overall receiver size and reduced weight.The revolution features many 5.56 parts; such as charging handle, bolt carrier, cam pin, buffer, heat sink barrel nut, handguard, and 5-position gas piston operating system.The barrel extension, bolt assembly, upper, and lower receiver are the exact same size as those on an ar15.This model is built on the gen 4 lower receiver with a burnt bronze finish, a 16.5" m-lok mrr free-float handguard, and pof's standard 4.5 lb.Drop-in trigger.Metal Finish: Burnt Bronze Receiver/Black BarrelAction: Semi-AutoCaliber: 7.62x51mm NATOBarrel Length: 16.50"Capacity: 20+1Trigger: StandardSafety: AmbidextrousOal: 34"Weight: 7.30 lbsStock Description: 6 Position MFT BMS MinimalistMuzzle: Muzzle BrakeReceiver Material: AluminumSights: None, Optic ReadyBarrel Description: Match Grade NitrideTwist: 1:10"Barrel Length Range: 16" to 16.99"Weight Range: 7 lbs to 7.99 lbsHand: RightStock Finish Group: BlackMetal Finish Group: Brown