The Supreme Court has agreed to hear a case concerning a Trump-era ban on bump stocks, a firearms modification that increases the rate of fire of semi-automatic rifles. The case was brought by Texas-based gun owner and licensed dealer Michael Cargill, who owned two bump stocks before the ban went into effect. The decision to hear the case is likely to be closely watched by gun rights activists and gun control advocates alike, and could signal that the court is ready to consider more gun rights cases in the future.