WASHINGTON (AP) — The Trump administration said Saturday it has taken the first step in the regulatory process to ban bump stocks, likely setting the stage for long legal battles with gun manufacturers while the trigger devices remain on the market.

The move was expected after President Donald Trump ordered the Justice Department to work toward a ban following the shooting deaths of 17 people at a Florida high school in February. Bump stocks, which enable guns to fire like automatic weapons, were not used in that attack — they were used in last year's Las Vegas massacre — but have sin...