ASG Open Blaster Airsoft Bio BBs (0.20g / 0.25g / 0.28g) Weight:0.20g 15T is a standard piston

15T is a standard piston rack

You may also notice improved accuracy

Shoulder loops for hydration tube and audio cables

Thread Direction: 14mm Negative

Upgrade Option:

ASG Open Blaster Airsoft Bio BBs (0.20g / 0.25g / 0.28g) Weight:0.20g 15T is a standard pistonNow going green in Airsoft, no longer means wearing camouflage. The New Environment Friendly Airsoft BB for Pro Games. Finally you can go green while maintaining accuracy and consistency in your Airsoft gun. Manufactured to exact dimensions within a + 0. 01mm tolerance. This environment friendly BB will shoot tight groups at long distances. Nontoxic and safe for people and environment tested according to EU and US regulations. The BB's contain PLA, a