0.2g a Airsoft BB, materials are mainly divided into environmental protection plastics and biodegradable plastics. Among them, the  airsoft BB, of environmental protection plastics is mainly ABS plastic, AS plastic, and PS plastic. These plastics are easy to mold and process, and the price is not high. They are suitable for production of ordinary environmental protection. Airsoft BB,

There is also calcium carbonate in the 0.2g Airsoft BB. Calcium carbonate is added to the Airsoft BB to increase the weight of the Airsoft BB and reduce the cost of the material. The Airsoft BB filled with calcium carbonate is easier to degrade in nature. However, the degradation rate of the environmental protection Airsoft BB will be a slow process. If you want to be truly environmentally friendly and will not cause environmental pollution, you must use PLA biodegradable Airsoft BB.