Nigel mentioned earlier RGJ possibly had the M85. I am ex 3rd battalion, I'm sure we didn't. I'm also lucky enough to own one of my battalions L42's of which I have a copy of the UIN list of which my L42 is listed. It shows my rifle to be 1 of 8 returned to Donnington in 1988 which is when we received the L96. If my memory serves me correctly our 2nd battalion was at that time demonstration battalion in Warminster therefore its highly possible they did.
Just my two penneth's worth in putting the big jig saw puzzle back together.