Lightweight aluminum URX handguard with Picatinny segments and a full length optic top rail Full metal upper and lower receivers with an enlarged trigger guard and Knights Armament official trademarks Ambidextrous firing selector, QD sling points and magazine release greatly enhances rifle manipulation Internals are upgraded with the ARES EFCS V2 gearbox and Rapid Velocity Tuning System Pistol grip and adjustable crane stock are ergonomically designed and constructed of reinforced high density polymerSpecifications: Brand ARESOperation Electric AutomaticBuild Metal Frame / Polymer FurnitureFiring Modes Semi-Automatic, Full-AutomaticMuzzle Velocity 360 - 380 FPS (w/ 0.20g BBs)Inner Barrel Length 495mmLength 32.4 / 37.9 Inches (Retracted / Extended)Color DARK EARTH 1X AEG Rifle