I stumbled across the video linked below a little while ago. I have always been intrigued by the gyrojet and have read quite a bit about them. I had never seen video of live fire, but I’m glad that I stumbled across the video because that has now changed. I now want to build a .45acp or similar single shot gun replicating the look of the carbine. That big cone on the end is interesting. So for those who like weird, here ya go.