Slingshot front grip
thingiverse
Friend got a crazy slingshot off Amazon. After firing once I realized it needed a front grip so you didn't wrap your hands around it and crack your knuckles. The rods are 1/2in (13mm) and this grip slides up and down to allow you to load shot. I used some random nuts and bolts so not sure what size, just try until it fits but they are 1in long.
Download Model from thingiverse
With this file you will be able to print Slingshot front grip 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 Slingshot front grip.