Automatic weapons fire a stream of bullets when the trigger is pulled once and held. They differ from semiautomatic weapons, which require one trigger pull for eachz round fired. Potential buyers must first locate a gun dealer who is authorized to sell automatic weapons. But semi-automatic rifles can be modified to fire fully automatic. Other devices like a trigger crank can also modify these weapons so they fire in an automatic fashion at a low cost.

Source: Fox News October 03, 2017 00:22 UTC