Has a black Flash hider Came with a 9.6v 1100 mAh battery but was upgraded to a 9.6v 1600 mAh battery FPS 350-370 Durable injection molded polymer receiver with mock ambidextrous controls Fully licensed by Knights Armament Corp. Fully licensed full metal 10" URX 4 Keymod Hand guard Front and rear KAC micro flip up sights Bottom 9 slot keymod rail segment 1x 5 slot side mounted keymod rail segments Continuous top rail allows for mounting of optics, lights and other accessories Stamped Knights Armament trademarks Mock ambidextrous mag catch and ambidextrous selector switch Length: 740mm - 820mm Adjustable Weight: 4.12lbs Inner Barrel: 300mm Magazine Capacity: 350rd Hi-Capacity. Works with Echo1, Matrix, G&G, Tokyo Marui and other compatible M4 / M16 Series Airsoft AEG Magazines Muzzle Velocity: 350~370 FPS Thread Direction: 14mm Negative Gearbox: Ver 2 Full Metal, Fully Upgradeable Motor: Long Type Fire Modes: Semi/Full-Auto, Safety Battery: comes with a 9.6v 1100 mAh battery but was upgraded to a 9.6v 1600mAh battery Hopup: Yes, Adjustable Package Includes: Gun, Magazine, Manual, Flip-up sights