Hi Jim, the unique gas blocks, straight magazines and bipods were made by Canadian Arsenals and shipped to Lithgow.
Kev has brought me up to speed on the nitty gritty of the L2, it seems that almost the entire inventory was exported to the UKpost service.
From there, some shipped back to NZ and some shipped to the US (I would guess Europe too).
Now it seems (going by the ex NZ L1A1's that came this way) they were all Birmingham proofed before dissipating to the four winds, my L2 wasn't, so I wonder if it couldn't be proofed for some reason and was chopped.
My example was deactivated by the well known dealer Ryton Arms back in 1995 according to the documentation. I might enquire if they would be prepared to divulge how many they had, I can but ask.
I would love to see a breakdown of were they all dissapered too. Like I say, I have never seen another one here.