I have never seen or heard of one. They are more into hammers and stuff. A 3 piece is easy to build. An injector not so much. But then again they did reverse engineer a B 29 to make a clone.
The consensus is that they never made one and, if they had, it probably would have been a horribly dangerous piece of kit. They did, however, manage to more-or-less clone the Gillette Adjustable razors which is a feat no one else has done (the jury is still out on the Rockwell Model T, for me). Personally, I'm surprised we've never seen a Soviet razor based on one of the Gem designs.