Key Features: 1. 1:1 highly restored replica of the improved German HK416 assault rifle, with wear-resistant matte black finish, short-stroke piston structure, retractable adjustable stock, and classic tactical details, combining tactical texture and collection value. 2. Upgraded precision gearbox and reinforced gold gears for better stability and lower failure rate, suitable for both beginners and senior enthusiasts. 3. High-strength reinforced engineering nylon body with heat insulation, solid structure, impact-resistant, and realistic grip. 4. Upgraded electric firing system with continuous/single-shot mode, recoil feedback, and realistic fire rate (700-900 rounds per minute simulation). 5. Realistic operation (bolt pulling, empty magazine hanging, safety switching, etc.), suitable for left/right-handed users. 6. Full-size Picatinny rails for free tactical accessory installation to create personalized looks. 7. XT30 battery interface (compatible with 7.4V/11.1V lithium batteries, sold separately), effective range 25-35 meters, improved accuracy and firepower.