Black Forge Flat Top 5.56mm NATO Carbine
• 4140 16.5” M4 Barrel w/ 1×7” Twist
• M16 Auto Bolt Carrier Group Chrome Lined and Manganese Phosphate
• 7075 T6 aluminum forged lower receiver.
• Standard semi-auto lower parts kit featuring a single stage trigger system.
• A-2 Pistol Grip & Invincible Arms 6-Position Telescoping Stock
• Includes one 30-round stainless steel magazine with anti-tilt follower
• Warranty: Invincible Arms Lifetime Warranty