I will have to check that out thank you sir my big wondering is that trigger frames set up a guy had on his cannon on the video PC guy

hey all getting in to the game, im a big Paintball guy so im kinda in the loop some! I want to build a nice cannon to shoot a tennis ball for my dog since im a wuss lol, also i want to build some monster of power with muscle and lots of distance lol. this is just for fun! where can i get that trigge...