The Radical Firearms 7.5″ M4 profile 5.56mm is a complete MIL-STD upper ready to drop on any MIL-STD lower Receiver. Perfect for the shooter wanting to finish out that build and hit the range. Built with our 7″ FCR 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.

• Barrel Length: 7.5″
• Gas System: Pistol Length
• Barrel Profile: M4 Profile
• Barrel Material: 4140 Chrome Moly Vanadium
• Barrel Finish: Melonite
• Muzzle Thread: 1/2×28
• Chamber: 5.56mm
• 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: M-Lok Thin Rail
• Handguard Length: 7″
• Charging Handle: MIL-STD
• Bolt Carrier Group Included: Yes
• BCG Finish: Nitride