If you mean a true left-hand follower [i.e. mirror image of the factory one], no. Nobody seems to make them. If you're dealing direct with Matt Williams, you could ask him about the possibility though. Jim Wisner is another possibility - he does RH followers for Pre-64 M70's - see here . Jim will know what will fit what.

If you're ordering direct from Williams [which I recommend - good mob], consider getting a couple of the extractors. You can do this, and still stay under the US$100 export license threshold, for the same postage cost.

Could be handy if you ever lay hands on another LH M70, and go for a big-bore rebarrel. And yes, I did do this, but I'm hanging on to the spare matte stainless extractor!