ST22 buffer plug
grabcad
I got this part to rework into what I needed for my build. This was an off the shelf part.
Download Model from grabcad
With this file you will be able to print ST22 buffer plug 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 ST22 buffer plug.