We carry a wide range of BBs for airsoft.  We don't stock the lightest BBs out there, 0.12g, since they do not work well in the nicer airsoft guns we sell.  Our offerings start a 0.20g, and go up aboe 0.40g.  We also offer BIO bbs and Tracer BBs.  Not sure which one is best for you and your setup? Ask us, we're happy to help you pick out the right one.