FEATURES: Caliber 5.56 NATO Stock Finish Black Action Semi-Auto Capacity 30+1 Muzzle A2 Flash Hider Grips Black Magpul MOE Hand Right Handguards Magpul M-Lok Heat Resistant OAL 32.56"-35.50" Receiver Finish Black Hard Coat Anodized Receiver Material Aluminum Stock Description Adjustable Magpul MOE Stock Finish Group Black Stock Material Synthetic Twist 1:9" Weight 7 lbs Barrel Description Chrome Moly Vanadium Barrel Finish Black Manganese Phosphate Barrel Length 16"