Shoot the best. BB pellets manufactured by G&G Armament are high precision products, these pellets control the tolerance within 0.005mm, which is the most precise BB pellets in the market. Perfect surface and precise size for incredible air-seal and feeding. Bio BBs from G&G Armament are true bio degradable, well received by world market and environmental friendly sites.These BB pellets are well known for the best choice for high precision barrels and jam free BB pellets.