SKWAirsoft sent in news that they new Duel Code Ultra White Bio BBs. Available in 1,000-round bags. Diameter is 5.95±0.01mm and are available in heavier weights: .36, .40, .43, and .45 grams. Airsoft snipers can check these out if they meet their requirements. We do not know how polished they are as not much was said in the descriptions of these BBs.