Looking for an airsoft rifle with more features? The Valken ASL+ Foxtrot45 electric gun adds several new features to our normal ASL airsoft electric gun. We have upgraded the internal components to provide less stress on the gearbox, including a 22:1 ration gear set, piston with full metal teeth, and radial cuts in the gearbox shell. The ASL+ Foxtrot AEG 6mm rifle also comes with a rotary style hop-up unit with locking increment settings. The Foxtrot electric gun also comes with new external features, including a 3-position PDW style buttstock with two QD sling mount attachment points, 5-3/4 inch MLOK compatible rail, 280-round hi-cap SMG style magazine, and SMG magazine adapter that fits inside the M4 magazine well. All ASL+ series rifles are also covered by the Valken 1-year bulletproof warranty. We recommend using a Valken 7.4v 1000mAh Lipo airsoft battery or 7.4v 2500mAh Li-ion airsoft battery with a small Tamiya connector.