Yep, that's it plus the post 1970ish holdall in dark green webbing material, a bit shorter (for the Mk3 .303" gun or L4 barrels) and squared off at the bottom) and the additional slots for the 5 piece cleaning rod - but I think 3 pieces are long enough for the L4 barrel.....
The little tin (spare parts wallet, bottom) holds the spare parts PLUS a few L1A1 rifle bits for the riflemen in the section. We've established that the gas plug/vent/hole reamers were still issued BUT....., only to Armourers who could use them sensibly. As opposed to the gunners, who tend to be a bit ....., er, how do we say it..........? Ah, yes! Ham fisted with them.
Great question