Jacob Grey Firearms Ultralight Complete Upper Assembly 7.62x39mm 16in Black

Jacob Grey Firearms Ultralight Complete Upper Assembly 7.62x39mm 16in Black. This AR-15 complete upper assembly is built around the 7075-T6 billet upper receiver specifically machined and cut in areas where excess material was unnecessary and areas that see excess use and wear reinforced and strengthened to give a sleek refined look without losing the classic lines of the AR-15 platform. It comes standard with the JG designed free float 7-sided M-LOK hand-guard that is also lightweight and leaves plenty of room for customization or the addition of numerous accessories available for the AR-15 platform. The barrel is chambered in 7.62×39 with a 1:10 twist rate. The barrel is machined from 4150 chrome moly steel and parkerized finished for corrosion resistance and accuracy. Each barrel is individually head-spaced to the Carpenter 158 bolt. Combined with the 8620 steel carrier and black Nitride finish this complete upper assembly is extremely reliable and smooth shooting. DISCLAIMER: Firearm specifications are subject to change at any time based on availability and supply chain shortage. Specifications for Jacob Grey Firearms Ultralight 7.62x39mm Complete Upper Assembly: Manufacturer: Jacob Grey Firearms Cartridge: 7.62x39mm Barrel Profile: Heavy Barrel Twist Rate: 1-10 Threads per Inch: 5/8×24 Handguard Type: Free-Float Muzzle Device: Brake Finish: Type III Class 2 Hardcoat Anodized Color: Black Fabric/Material: Aerospace Aluminum Gas Block Journal Size-Diameter: .075 in Handguard Style: Round Rail Attachment/Mount Type: M-LOK Gun Rail: M-LOK Gun Type: Rifle Gun Make: AR Platform Gun Model: AR-15 Weight: 7.7 oz Condition: New Barrel Material: Chrome Moly Gas Block Journal Size-Length: 1.9 in Bolt Carrier Group Included: MIL-SPEC Charging Handle Included: MIL-SPEC Features of Jacob Grey Firearms Ultralight 7.62x39mm Complete Upper Assembly Compatible with most aftermarket/OEM handguards featuring indexing tabs Billet 7075-T6 aerospace aluminum Jacob Grey lightweight design M4 feed ramps Machined T-marks Laser engraved logo MIL-A-8625F Type III Class 2 hardcoat anodized flat black finish Compatible with MIL-SPEC AR upper receiver parts JG ULTRALIGHT Handguard Package Contents: Jacob Grey Firearms Ultralight 7.62x39mm Complete Upper Assembly Jacob Grey Firearms 76239105ULCUA: Ultralight Complete Upper Assembly 7.62x39mm 10.5in Black Jacob Grey Firearms 7623916ULCUA: Ultralight Complete Upper Assembly 7.62x39mm 16in Black Jacob Grey Firearms 7623975ULCUA: Ultralight Complete Upper Assembly 7.62x39mm 7.5in Black Jacob Grey Firearms 7623916ULCUA: Ultralight Complete Upper Assembly 7.62x39mm 16in Black