Cool gun, I may have to build myself one.
I see you are posting a lot, don't forget to enter each rodeo into a giveaway. There are giveaways that have been ending with no entries which would guarantee a win!
Brownell's new Lewis Machine & Tool M203 37mm Launchers surprisingly need no FFL or special registration to own! You may not be able to use it like the military does for launching grenades, but you can still shoot flares, bird bombs, fireworks, and