Now available at Evike.com are EMG Precision Biodegradable Green Tracer BBs. You can choose amongst different weights: 0.20, 0.23, 0.25, 0.28m, 0.30, and 0.32. These give a high luminosity green glow done with precision manufacturing of 5.95mm +/- 0.01. They guarantee that these are perfect spheres and are smooth with no seams or surface imperfections with improved consistency.