I understand what bump stocks do from reading up on them, but I haven’t found an explanation of how they work. They allow firing a semi-automatic weapon more quickly by using recoil to move the rifle back and forth (“bumping”) against the trigger finger. What I don’t understand is what is different in a bump stock compared to a regular stock. In my mind, I envision a big cartoonish spring in the bump stock that moves the rifle back forward after the initial kick from recoil. How does it work exactly?
In: Physics
A bump stock lets the gun float a little bit, so when it fires, the whole gun moves backward a little bit before hitting your shoulder. A spring then pushes the whole gun forward again, and (assuming you haven’t moved your trigger hand) pushes the trigger against your finger, which causes it to fire again. This cycle repeats.
It’s just a spring inserted between the butt of the gun and your shoulder along with some plastic to make it more comfortable to hold. Instead of moving your finger back and forth to pull the trigger, you’re moving the whole gun back and forth and keeping your finger in the same place.
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