KWA KM16BR AEG The KM16BR 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 20 inch barrel, fixed full size buttstock, and high velocity output, this rifle is great for medium or long 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. 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 recommended 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 butt stock of the rifle and is easy to install. Simply flip open the door located on the butt plate and slide the battery in. Once everything is properly positioned, close it back up and you're ready to go. Airsoft players love this rifle for it's incredible "out-of-box" performance and great durability! Note: Does not include battery or charger