Well, I don't have a Mak, have a P64 which is way different, but I'd still be interested in how this conversion might shoot/perform...accuracy. I suppose it's for cheap practice more than anything else 'cause anything I can do with a .22 I can also do with a 9x18, like rabbits and such. These guns are accurate enough for small game hunting in my experience. .22 conversions are neat, can give you two guns in one, but 9x18 import ammo is NOT that expensive. That's a good thing. But, if you shoot the gun a LOT and don't wanna bother with handloading it (brass gets slung quite far in my p64), the savings could add up, I suppose.