Barrel: – 4150 CMV – 18 Length 1×10 Twist – Standard Gas System – Threaded Muzzle 5/8-24 A2 Style Flash Hider – Heavy Profile M4 Feed Ramps – Chamber: 7.62 x 51 NATO – Bolt And Carrier: – Phosphated 8620 Steel Carrier Assembly – 9310 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: Magpul MOE MLOK Rifle Length Handguards – Upper Receiver: – Forged 7075 T6 Aluminum – M4 Feeds Ramps with T-marks – Hard Coat Anodized – Ejection Port Cover and Round Forward Assist – Right Hand Ejection – Lower Receiver: – Forged 7075 T6 Aluminum – Hard Coat Anodized – Integrated Triggerguard – Semi-Auto – Aluminum Mag Catch Button – Ergo Ambi Grip – MOE Buttstock: – Magpul® MOE Stock – Polymer Construction – Mil-Spec Sized Tube – H-Buffer – Included: – 1 x 20rd .308 Magpul PMag – Chamber Flag – Gun Lock