Everything works good on this, wired to deans inside the feed tray. Custom multicam wrapped drum mag with velcro over cut out in the side for faster filling while in the gun. Will come with three small bottles for fast filling on the go. Basically new with little use. Manufacturer: Cybergun / Licensed by FN Herstal Specifications: Length: 850mm - 920mm (Adjustable) Weight (w/o magazine): 4000g (8.8 lbs) Joules: 1.4 FPS Range: 380-400 Inner Barrel: ~340mm Magazine: 300rd M4 Style AEG magazine included. Compatible with A&K style Box Magazines Thread Direction: 14mm Negative Gearbox: Version 2 (specs below) Motor: Long Type Fire Modes: Full-Auto, Safety Hopup: Yes, Adjustable