When you reach behind your truck seat for the ARP7 you are prepared for anything. The ARP7 is the AR-15 pistol built to perfection. The rock-solid billet Strongarm Pistol Brace and Big Timber Brake keep this beast under control when sending rounds downrange on target. The Cloak MLOK handguard allows for accessories to be mounted and profiled to fit the shooter's hand beautifully. Finish this pistol with your favorite dot optic and it's a force to be reckoned with on the range or protecting your family. - Caliber 5.56x45mm NATO - Twist Rate 1:9 Right Hand - Barrel Length 7.5 - Barrel Material 4140 Chrome Moly - Barrel Features Free Floating - Over All Length 24.5 - Upper Receiver Type Flattop - Upper Receiver Material Forged Aircraft 7075 T6 Aluminum - Upper Receiver Coating Type III Anodize - Upper Receiver Features T-Marks Brass Deflector Ejection Port Door Assembly M4 Feedramps - Lower Receiver Material Forged Aircraft 7075 T6 Aluminum - Lower Receiver Coating Type III Anodize - Fire Control Group Standard Trigger Group - Sight / Gas Block Low Profile Gas Block - Pistol Grip Ergo Grip� - Muzzle Device Big Timber Brake - Handguard DoubleStar 7 Cloak MLOK - Charging Handle Billet Backbone Charging Handle - Buttstock Buffer Tube - Magazine Capacity 30 rd. - Action Direct Gas Impingement - Modes of Fire Semi-Automatic