12ga to 20ga insert
thingiverse
Allows 12ga shotguns to fire 20ga. Use 100 percent infill happy shooting.
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With this file you will be able to print 12ga to 20ga insert 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 12ga to 20ga insert.