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The Radical Firearms 8.5" Hbar profile 300 AAC Blackout is a MIL-STD upper ready to drop on any MIL-STD lower Receiver. Perfect for the novice or advanced shooter wanting to finish out that build and hit the range.Simply add your BCG,charging handle and you are ready to go. Built with our 7" FHR free float rail system for increased accuracy and keeping your hands cool. No matter what your style of shooting is, Radical Firearms has you covered. SKU: FU8.5-300HBAR-7FHR

UPC: 814034024570

MFR#: RF01211 Barrel Length: 8.5"

Gas System: Pistol Length

Barrel Profile: Hbar Profile

Barrel Material: 4140 Chrome Moly Vanadium

Barrel Finish: Melonite

Muzzle Thread: 5/8x24

Chamber: 300BLK

Twist Rate: 1:7

Barrel Extension: M4 Feed Ramp

Gas Block Type: .750 Low-profile Gas Block

Muzzle Device: A2 Flash Hider

Upper Receiver Material: Forged 7075 T6

Upper Receiver Style: M4 Mil-Std

Upper Receiver Finish: Type III Anodizing

Forward Assist: Yes

Dust Cover: Yes

Handguard Type: Free Float

Handguard Style: Keymod Hybrid Rail

Handguard Length: 7"

