The G&G Full Metal Gearbox Combat Machine M4 Raider w/ an integrated metal rail system and full-length M4 barrel is a high-quality, high-performance Airsoft AEG rifle that is affordable at the same time. It is basically G&G's take on the iconic M4 RIS rifle, and features many of the high-end features normally found only on much more expensive G&G Top Tech [$350+] models. The CM M4 Raider comes standard with a 4-point retractable crane stock to allow nunchuck-style battery storage, making it extremely versatile. With the stock fully retracted, it packs a fierce punch in indoor/CQB games meanwhile with the stock fully extended, it can still run with the big boys in outdoor games. With a muzzle velocity that easily overpowers Tokyo Marui AEGs and a reinforced high performance full metal gearbox, the G&G CM M4 Raider is a force to be reckoned with out on the Airsoft fields. It has been engineered to be compatible with Tokyo Marui and many other aftermarket upgrade parts, and thus it is a modular platform on which customizations and upgrades can be done with ease. G&G has reinforced the build of the gearbox to be on par with their more-expensive "Top Tech" line of $350+ AEGs, making this M4-RIS Raider an amazing value. In addition, the internals have been enhanced right from the factory to deliver an extremely high rate of fire [ROF] right out of the box; users can take advantage of 900-1000 rounds per minute using a 9.6v battery! Add a precision crafted barrel that enhances accuracy and minimizes barrel wobble, and you have an amazingly SOLID fully automatic railed M4 AEG w/ a crane stock at an unbeatable price. The barrel length is that of a full-size M4 Carbine, aiding in both accuracy and power delivery, as making the weapon a full-size rifle as opposed to a compact M4.