Designed with a light weight polymer frame. Metal Version 2 Gearbox. Top and bottom standard 20mm rails for attachments. AEG rifle comes with a hi-cap 730rd drum magazine. Easy hop-up adjustment. Front and rear sling point mounts. Full stock provides stability during performance. Semi-auto, full-auto, and safety mode selector. AEG includes battery and charger right out of the package. Front and rear fixed sights for precision.Specifications: Operation Electric Automatic Build Full Polymer Body / Metal Gearbox Firing Modes Fully Automatic, Semi-Automatic, Safety Mode Muzzle Velocity 270-280 FPS (w/ 0.12 BBs) Magazine 730 Rounds Gearbox Version 2 (Metal) Battery 8.4V Brick (Sold Separately) Hop-Up Yes, Adjustable Weight 2.95 Lbs Length 32 Inches 1X AEG Rifle