Look no further and get your hands on Grid Defense's extensive selection of AR47 7.62x39mm upper receivers and build kits. We look forward to providing the tactical industry with top AR AR15 Upper Receivers at the best online prices. 7.62x39 upper receivers are available in black anodized finish, flat dark earth, olive dab green, burnt bronze, blue titanium, and tungsten grey in Cerakote finish from Grid Defense. Buy drop-in ready Ghost Firearms 7.62x39 complete upper kit. Browse through our extensive selection of ready-to-go 10.5" 7.62x39 AR upper available in 10.5" and 16" and choose the accessories that best suit your tactical needs. Specifications for Grid Defense 7.62x39 Upper Receiver: Manufacturer: Grid Defense Caliber: 7.62x39mm Barrel Profile: 4150 Steel Light HBAR Gas System Length: Carbine Length Barrel Twist Rate: 1-10 Threads per Inch: 5/8x24 Handguard Type: Free-Float Muzzle Device: A2 Flash Hider Gun Model: AR-15 Condition: New Fabric/Material: 4150 Steel Gas Block Journal Size-Diameter: .750 in Handguard Style: Thin Rail Gun Rail: M-LOK Gun Type: Rifle Gun Make: AR Platform Included Accessories: Standard Bolt Carrier Group Included: No Charging Handle Included: No Weight: 3.8 lb Magazine Included: No Mount Type: M-LOK Features of Grid Defense 7.62x39 Upper Receiver: .750 Low Profile Gas Block 10.5" 1:10 Twist 4150 Steel Barrel - Black Nitride 16" 1:10 Twist 4150 Light HBar Barrel Black Nitride 7075-T6 Milspec Upper Receiver A2 Flash Hider Carbine Length Gas System Chambered in 7.62x39mm *Note, NOT 7.62mm NATO Ghost Firearms M-Lok Free Float Hand Guard Ghost Mil-Spec 7075 T6 Upper Receiver Hard Coat Black Anodized Made in the USA Package Contents: Grid Defense 7.62x39 Upper Receiver Which weapon models is Grid Defense 7.62x39 Upper Receiver compatible with? Grid Defense 7.62x39 Upper Receiver is compatible with AR-15