40mm NATO to GOST adapter
thingiverse
This thing vanished from this site, but fortunately, I still have the original file. According to the files, it was created by Shakenbake 28, so here's the NATO 40mm to GOST adapter. The adapter goes into the mask and the NATO filter fits snugly into the adapter, making it a simple and easy process. I've also included an additional file that can be used if the adapter threads are too small for your printer. I highly recommend printing the second option first.
Download Model from thingiverse
With this file you will be able to print 40mm NATO to GOST adapter with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on 40mm NATO to GOST adapter.