Grumpy Old Geeks Products Wasp Product Wasp 2 mentions in 1 episode A 3D-printed .22-caliber gun that Cody Wilson describes as a proof of concept. Mentions 768: Rosetta Broccoli Oct 22, 2026 38:58 the Wasp, a working 3D printed 22 caliber gun without a serial number 39:20 Wilson calls the Wasp a proof of concept.