Stag Arms AR-15 Barreled Upper Receiver 6mm ARC 20" Barrel Left Hand

Stag Arms AR-15 Covenant Left Hand Upper Receiver 6mm 20in Barrel BULL Profile 1-7 Twist 5/8-24 Thread VG6 Gamma Black. Designed to be the ideal round for match shooting hunting and personal protection. To prevent any confusion the purchase of any Stag Arms Complete Upper does NOT include charging handle or BCG. Specifications for Stag Arms AR-15 Covenant Left Hand Upper Receiver: Manufacturer: Stag Arms Caliber: 6mm ARC Barrel Profile: Bull Gas System Length: Mid Length Barrel Twist Rate: 1-7 Threads per Inch: 5/8x24 Muzzle Device: VG6 Gamma Finish: Anodized Color: Black Fabric/Material: Metal Gas Block Journal Size-Diameter: .750 in Gun Rail: Picatinny Gun Make: AR Platform Gun Model: AR-15 Additional Features: Left Hand Condition: New Barrel Material: 416R Stainless Steel Bolt Carrier Group Included: No Magazine Included: No Charging Handle Included: No Mount Type: Picatinny Country of Origin: USA Package Contents: Stag Arms AR-15 Covenant Left Hand Upper Receiver What firearm models does the manufacturer say Stag Arms AR-15 Covenant Left Hand Upper Receiver is compatible with? The manufacturer says that Stag Arms AR-15 Covenant Left Hand Upper Receiver is compatible with AR-15Stag Arms STAG15112401: AR-15 Covenant Left Hand Upper Receiver 6mm 20in Barrel BULL Profile 1-7 Twist 5/8-24 Thread VG6 Gamma Black