300 AAC BLACKOUT Features:

• WASP Treated 4140 Chrome-Moly Vanadium Steel Barrels
• 1:8" Twist
• .300 AAC BLACKOUT Chamber 
• Uses AR-15 Magazine & Bolt
• Forged M4 Upper Receiver is T marked and has M4 feed ramp cuts
• Each rifle is head spaced and test fired
• 30 Round Magazine