Midwest Industries Combat Rail HD .223 Wylde 10.5inch Upper Receiver Group CORE Carbine Length 1-8 Twist 1/2x28 Threads A2 Hardcoat Anodize Black. 223 Wylde 10.5inch Upper Receiver Group. Formulated working with several of the most extremely durable and long lasting substances available these AR15 Upper Receivers from Midwest Industries provides you with an item which gives you a great deal of reliability. Midwest Industries has been generating superior quality merchandise for a very long time and the Midwest Industries Combat Rail HD .223 Wylde 10.5inch Upper Receiver Group is their very own approach to revealing exactly how much they care. Here at OpticsPlanet we make it our obligation to obtain the perfect solution for all your requirements and featuring the Midwest Industries Combat Rail HD .223 Wylde 10.5inch Upper Receiver Group is something that we're happy to offer. Specifications for Midwest Industries Combat Rail HD .223 Wylde 10.5inch Upper Receiver Group: Manufacturer: Midwest Industries Caliber: .223 Wylde Overall Length: 18.25 in Barrel Length: 10.5 in Gas System Length: Carbine Length Barrel Twist Rate: 1-8 Threads per Inch: 1/2x28 Muzzle Device: A2 Finish: Hardcoat anodize Color: Black Fabric/Material: Aluminum Gas Block Journal Size-Diameter: .625 in Handguard Length: 9.25 in Barrel Material: 4150 Chrome Moly Vanadium Bolt Carrier Group Included: No Charging Handle Included: No Weight: 3.1 lb Features of Midwest Industries Combat Rail HD .223 Wylde 10.5inch Upper Receiver Group T-Markings on Receive Carbine Length Direct Impingement Gas System MI-CRMHD9.25 Combat Rail HD Series M-LOK Handguard Complete Upper Receiver groups do not come standard with charging handles and bolt carrier groups. Package Contents: Midwest Industries Combat Rail HD .223 Wylde 10.5inch Upper Receiver Group Midwest Industries MI-C10.5CRMHD9.25-U: Combat Rail HD .223 Wylde 10.5inch Upper Receiver Group CORE Carbine Length 1-8 Twist 1/2x28 Threads A2 Hardcoat Anodize Black