** FILE ** In this photo taken on Thursday, June 27, 2013, Richard Taylor manager of at Firing-Line gun store in Aurora, Colo., shows some of the pistols that he won't be able to sell after June 30, 2013, because their magazines hold more than 15 rounds. (AP Photo/Ed Andrieski)

Photo by: Ed Andrieski

** FILE ** In this photo taken on Thursday, June 27, 2013, Richard Taylor manager of at Firing-Line gun store in Aurora, Colo., shows some of the pistols that he won't be able to sell after June 30, 2013, because their magazines hold more than 15 rounds. (AP Photo/Ed Andrieski)