The Radical Firearms 8.5" HBAR profile 300BLK is a complete 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. Built with a 7" RPR 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: CFU8.5-300HBAR-7RPR
UPC: 816903024063
MFR#: RF00351

• 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: 1:8
• 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: M-Lok Thin Rail
• Handguard Length: 7"
• Charging Handle: MIL-STD
• Bolt Carrier Group Included: Yes
• BCG Finish: Nitride