The 21-year-old suspect in Monday's massacre at a Boulder, Colorado, supermarket allegedly used a Ruger AR-556 pistol -- what one expert called "a semiautomatic made for combat" that is easy to carry and has "the firepower of a long gun."
원문출처 : https://www.cnn.com/2021/03/24/us/boulder-colorado-weapon-ruger-ar-556/index.html
원문출처 : https://www.cnn.com/2021/03/24/us/boulder-colorado-weapon-ruger-ar-556/index.html