The B-20 is an alternate kit for making a smaller smoke grenade for standard grenade pouches and lower weight. The B-20 is based on the M18 smoke grenade but shorter overall. It can be made with a rearmed M201A1 fuse or an M228 fuse and the files include editable step files in the development kit. LBRY Tags: b20; smoke; grenade; stubbs; m18