Radical Firearms FR16556SOC15RPR RPR 5.56 NATO 30+1 16 in Black Melonite Steel Threaded Barrel, Black Anodized Aluminum Receiver w/Picatinny Rail, 15 in M-LOK Handguard, Black Synthetic B5 Bravo 6 Position Stock, Rifle

Barrel Length: 16″

Barrel Material: 4140 Chrome Moly Vanadium

Barrel Finish: Melonite

Barrel Profile: SOCOM

Barrel Thread Pitch: 1/2×28

Chamber: 5.56mm

Twist Rate: 1:7

Barrel Extension: M4 Feed Ramps

Gas System: Mid Length

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: MIL-STD

Dust Cover: MIL-STD

Handguard Type: Free Float

Handguard Style: M-Lok Thin Rail

Handguard Length: 15″

Charging Handle: MIL-STD

Lower Receiver: Forged 7075 T6

Lower Receiver Finish: Type III Anodizing

Fire Control Group: Semi-Automatic MIL-STD

Grip: B5 Type 23 Pistol Grip

Buffer Tube: Carbine MIL-STD

Stock Adjustment: 6 Postion

Stock: B5 BRAVO

Magazine: 5.56mm 30 Round