Bbman If it is a boxlock like the ones in the picture there is good and bad news, good news is the left cocking leaver is a mirror image of the right one and there is only one hole in it. It is very possible to file one from a piece of steel given a little patience, I have made a number of these now because of a broken ejector claw, I usually use the steel from an old file after annealing it. The not so good news no off the peg spares and you will have to adjust the ejector timing after fitting the replacement. Or pay a gunsmith to do the work.
