Did you know that you can do full-auto firing and it is absolutely legal? Bump Fire Systems is here to introduce you to Bump Fire Stock, that allows you to recreate the feeling of automatic firing. You can use it with your semiautomatic weapon by gripping the fore-end of the barrel and pulling it forward. Bump Fire uses a gun’s recoil to shoot multiple rounds.
Why is it legal?
Bump Fire Stock is legal because it is incapable of initiating an automatic firing cycle that continues until either the finger is released or the ammunition is exhausted. Firearms Technology Branch (FTB) finds that the product is not a machine gun as defined under the Gun Control Act, 18 U.S.C.921(a)(23) You can find complete ATF approval here.