0.20g Tokyo Marui Tracer 900 BBs.
These BBs are produced by Tokyo Marui out of Japan. Tokyo Marui is the original manufacturer of airsoft products, so it is a fact that they produce the best quality BBs on the market. These BBs are recommended for use in all types of airsoft guns. These high polish, extremely high-quality BBs work best in tightbore and other high tolerance barrels. They are generally inexpensive to shoot and give a great light-show at night. These airsoft BBs will glow green for a short period of time after being exposed to a bright light source. Mix with other color BBs to act as a tracer at night time. Players recommend getting an external tracer unit so that you can use these BBs with all your guns that have barrel threads of 14mm counterclockwise.