The Trump administration has struck a deal to allow sales of a trigger mechanism that modifies a semiautomatic firearm to allow it to fire more rapidly. Gun-control advocates have argued that the ...

Add Yahoo as a preferred source to see more of our stories on Google. Biofire's gun is designed to allow an authorized person to fire the weapon instantly upon gripping it, and to disable the trigger ...

Matt Stone / USA Today Network/Reuters A tiny, inexpensive device is all it takes to modify some semi-automatic handguns into illegal automatic weapons capable of firing multiple rounds with one pull ...