please if you get into trouble IT IS NOT MY FAULT!!!!!!!!!! you take responsbillity for what you do with it and please remember the be nice policy i would love some comments on how to improve and if you have any videos of you using it or building it please send it to me so i can upload it to the instructable i cannot tell you the "fps" feet per second cause i have not tested it and if u know it please tell i know that i got a blood welt from a plastic bb so please do not shoot anything that can feel pain oh and have fun with it it should only cost about 3-5 dollars at most