28mm grenades
thingiverse
Couldn't find a set of grenades designed specifically for 28mm models so I made one.
Download Model from thingiverse
With this file you will be able to print 28mm grenades 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 28mm grenades.