That looks an awful lot like an owen gun.

Eastman said in comment #238:

That looks an awful lot like an owen gun.

very hard to ID either one of the two, both were used during the indonesian-malaysian confrontation, though I assume the sten was used more commonly than the owen gun since the sten was mass produced

Eastman said in comment #238:

That looks an awful lot like an owen gun.

though the case could be that both are being used in the picture, so i'll add both for the benefit of doubt

schizoxy said in comment #247:

very hard to ID either one of the two, both were used during the indonesian-malaysian confrontation, though I assume the sten was used more commonly than the owen gun since the sten was mass produced

the two smgs on the front and left are definitely owens- you can see the little knob on top, along with the top-mounted magazine. post #1754