I'm not sure if there are any other Makarov owners out there, but if anyone is interested I just received a .22 conversion kit and spare magazine from K-Var. According to the manual which came with it, it will work with box the 9x18 and .380 models. They seem to have a limited number available at this time, and I'm not sure if this will be a normally stocked item.http://www.k-var.com/shop/product.php?productid=17061&cat=268&page=1
I haven't had a chance to do much other than look at it, but it seems to be well made. Hopefully I'll have a chance to put a few rounds through it during Christmas break.
No relationship to seller other than as a satisfied customer, etc.