guns , difference size of semi automatic pistol handguns with .45 bullets , the same of single action operating system , 1911 guns

45 1911 acp action ammo ammunition army assassin attack automatic background battle black bullet bullets caliber components crime criminal danger dangerous defense design detail difference equipment firearm firearms gun guns handgun handguns heavy isolated machine magazine maintenance metal military object operating pistol protect protection retro safety security selfdefense semi shooting single size soldier sport steel system trigger used violence war weapon white