Rock River Arms Completed Upper Receiver Left Handed RAGE .223/5.56mm 10.5 Inch Barrel 1-9 Twist 1/2-28 Thread Free-Float Handguard A2 Flash Hider. 223/5.56mm Completed Upper then you have turned up at the absolute appropriate spot.. Formulated working with some of the most extremely robust and long lasting substances available these AR15 Upper Receivers via Rock River Arms can provide an item which gives you years of consistency. Rock River Arms has been generating superior quality merchandise for a number of years and the Rock River Arms Left Handed RRAGE .223/5.56mm Completed Upper is their manner of revealing how much they care. Here at OpticsPlanet we ensure that it is our responsibility to obtain the most suitable product for all of your needs and exhibiting the Rock River Arms Left Handed RRAGE .223/5.56mm Completed Upper is something that we are happy to offer. Specifications for Rock River Arms Left Handed RRAGE .223/5.56mm Completed Upper: Manufacturer: Rock River Arms Caliber: .223 Wylde 5.56x45mm NATO Barrel Profile: Standard Barrel Twist Rate: 1-9 Threads per Inch: 1/2x28 Handguard Type: Free-Float Muzzle Device: A2 Flash Hider Finish: Anodized Color: Black Condition: New Fabric/Material: Aluminum Gas Block Journal Size-Diameter: .750 in Handguard Length: 7.25 in Handguard Style: Quad Rail Gun Rail: Full Top Rail Included Accessories: None Barrel Material: Chrome Moly Bolt Carrier Group Included: COM-SPEC Charging Handle Included: COM-SPEC Weight: 4 oz Magazine Included: No Mount Type: M-LOK Package Contents: Rock River Arms Left Handed RRAGE .223/5.56mm Completed Upper Bolt Carrier Group Charging Handle Assembly Rock River Arms LH0440: Completed Upper Receiver Left Handed RAGE .223/5.56mm 10.5 Inch Barrel 1-9 Twist 1/2-28 Thread Free-Float Handguard A2 Flash Hider Black