Rock River Arms 7in Pistol CM Barrel Assembly w/A2 Front Sight Black. 56x45mm NATO 7in Threaded Pistol CM Barrel Assembly w/A2 Front Sight was developed in order to be the ideally suited product for any person trying to find an outstanding option.. Developed working with several of the most sturdy and dependable resources available these AR15 Barrels from Rock River Arms can provide something that gives you numerous years of dependability. Rock River Arms has been developing high quality products for a very long time and the Rock River Arms 5.56x45mm NATO 7in Threaded Pistol CM Barrel Assembly w/A2 Front Sight is their way of revealing how much they care. Here at OpticsPlanet we ensure that it is our responsibility to receive the best solution for all of your requirements and presenting the Rock River Arms 5.56x45mm NATO 7in Threaded Pistol CM Barrel Assembly w/A2 Front Sight is one thing that we are pleased to offer. Specifications for Rock River Arms 5.56x45mm NATO 7in Threaded Pistol CM Barrel Assembly w/A2 Front Sight: Manufacturer: Rock River Arms Color: Black Fabric/Material: Chrome Moly Caliber: 5.56x45mm NATO Barrel Length: 7 in Barrel Profile: Standard Gas System Length: Pistol Length Gas Block Journal Size-Diameter: .750 in Barrel Twist Rate: 1-8 Flutes: No Gun Make: Rock River Arms Gun Model: Universal Weight: 22.1 oz Firearms Threads Per Inch: 1/2x28 Package Contents: Rock River Arms 5.56x45mm NATO 7in Threaded Pistol CM Barrel Assembly w/A2 Front Sight What firearm models does the manufacturer say Rock River Arms 5.56x45mm NATO 7in Threaded Pistol CM Barrel Assembly w/A2 Front Sight is compatible with? The manufacturer says that Rock River Arms 5.56x45mm NATO 7in Threaded Pistol CM Barrel Assembly w/A2 Front Sight is compatible with UniversalRock River Arms AR0209ASY: 7in Pistol CM Barrel Assembly w/A2 Front Sight Black