Board Thread:General Nerf discussion/@comment-30049823-20190906060611/@comment-30049823-20190910003323

Yeah, that's what I was going for; just a couple custom-cutout plastic pieces for each side, a shorter (carriage)bolt with just a nut on the other end, and lots of glue to bond it to the back of the dumb sliding thing, which you could then grab the top or bottom side of to prime.

This dude made a 3D printed pump handle and an aluminum internal prime bar, but that's way more work than I wanna put into a T. Hawk:  https://www.thingiverse.com/thing:3058433