Barrel: - 16" Length, 1x9 Twist - Carbine Gas System - Threaded Muzzle, A2 Flash Hider - Manganese Phosphated - DTI Low Profile Gas Block - Heavy Profile Chamber: - 5.56 Nato Bolt & Carrier: - Phosphated 8620 Steel Carrier Assembly - Carpenter 158 Bolt - Heat Treated and Plated - Mil-Spec - Chrome Lined Carrier Interior - Carrier Key - Chrome Lined, attached with Grade 8 Screws - Properly Staked & Sealed Gas Key Handguards: - Carbine Length - Aluminum Delta Ring - Single Heat Shield Upper Receiver: - Forged 7075 T6 Aluminum - A3 Flat Top w/ White T-Marks - Hard Coat Anodized - Bores Surface is coated with dry film lube, over anodized surface - Mil-Spec - Open Ejection Port (This model does not have an ejection port cover or Forward Assist) - Right Hand Ejection Lower Receiver: - Forged 7075 T6 Aluminum - Hard Coat Anodized - Mil-Spec - Aluminum Triggerguard & Mag Catch Button - Semi-Auto - A2 Grip Buttstock: - M4 6-Position Buttstock - Commercial Buffer Tube - Carbine Buffer Included: - 1 x 30rd Magazine - Chamber Flag - Gun Lock Weight: - 5.8 lbs. Empty Length: - 36.375" Fully Extended - 32.625 Collapsed