0.29g Maruzen Grandmaster APS 500 BBs
These high quality BBs are manufactured by Maruzen in Japan. Maruzen produces these BBs under the Grandmaster APs label, which means that they are supposed to be the ultimate in sniping quality. Maruzen is one of the oldest companies to produce BBs for the airsoft market are considered the original, high quality, standardized production sniper BB. Rumored to have heat-seeking abilities, these BBs are produced with a very high polish, they are recommended for any airsoft gun, but primarily for upgraded spring sniper rifles. The exacting standards involved in production make these perfect for use in high tolerance tightbore barrels. The heavier weight also makes these more accurate at distances as compared to 0.20g BBs.