...112-728
....found a cleaner/cleaner version of the AWM pic in your collection:

That image is much clearer

. Thanks.
I did notice that that the Buggy has an unbuckled seat/lap belt attached to the rear of the tub.
So why did the army fit these belts to the Gunbuggy?
It appear that the belt sat in a horizontal position across the rear opening. There would not be enough length for the belt to be looped up over an object such as the 106mm RCL. This would therefore indicate that the belt was used to restrain either personal or gear from exiting the tub unceremoniously out the back open tailgate. As show in the photo below (although unbuckled), could it have been used to hold the gunner in place when firing the 106?
Does anyone have knowledge of the belt restraint?
I have identified 9 Gunbuggies (including 112-728) that exhibit the same holes in their rear tubs. There may be others.
They are -
112-245
112-512
112-516
112-723
112-725
112-728
112-730
112-733
113-253
This would indicate that the belts were an integral part of Gunbuggy modifications. It would be interesting to find out how effective they were at their chosen task.
This is the only other 'in service' photo I can find with the belt in situ. Unbuckled and hanging.
