KWA KM4-CQB AEG The KM4-CQB by KWA is one of the best advanced level AEGs ever produced. Built in Taiwan by totally fearsome ninja-airsoft-engineers using the most advanced internal and external parts ever made, this rifle is perfect for any airsoft enthusiast, from beginner to advanced. With a 10.5 inch barrel, multi-position telescoping stock, and high velocity output, this rifle is good for close quarters battle indoors play or middle distance outdoors play. The upper receiver, lower receiver, barrel assembly, buffer tube, and magazine are all high durable aluminum alloy and the rest of the furniture is fiberglass composite. As an added bonus an ambidextrous side sling mount is included already installed. The internals have been factory upgraded with a reinforced mechbox, hardened steel gears, high tension spring, high density piston, and Hi-torque/ Hi-speed motor. Because of all the reinforcement, KWA rifles are able to handle up to an 11.1v Li-Po battery, however a MOSFET is still suggested for safer operation. The rifle comes with a KWA 350 round high capacity magazine and there are plenty of replacements available. The battery compartment is located inside the handguard of the rifle and is very easy to access and install. Simply pull down on the delta ring and remove one of the handguard halfs. Airsoft players love this rifle for it's incredible "out-of-box" performance and great durability! Highly recommended by the staff here at our store. Note: Does not include battery or charger