
Burster M31 is essentially a cylindrical fiber body filled with an explosive charge consisting of 250 grams of tetryl. One end of the body is closed by a plastic cap; the other end, by a paper disc. Burster M31 is an integral part of nonpersistent gas bombs M125 and M125A1, and it is installed in the bombs during manufacture.
Tetryl, 250 grams (8.9 oz)
Bomb, 10 lb Chemical, M125, M125A1
TM 9-1325-200, Bombs and Bomb Components (1966)
TM 3-400, Chemical Bombs and Clusters (1957)