I was a rifleman (Infantry) in the Australian Army and the issued knife we carried were a M9 bayonet. We were also issued a pretty useless clasp knife. What I actually carried was, when the bayonet was not required, was firstly a SOG Seal Pup, and later a ZT 0121. Nice and small and easy to put on your webbing (belt kit). The biggest knife I saw someone carry without being laughed at and called 'Rambo' was a SOG Government. As for folders, the only knife issued only to certain units was a spyderco rescue 93mm. I personally carried a few folders, from an Endura to a Strider SNF (still wish I had that one) and a ZT0550. I still carry the ZT and have an ESEE 4 in my bag as a Part time Emergency Responder

