Repeats to add ticker symbols
** Gun stocks rise premarket extending previous session's rally after U.S. conservative activist Charlie Kirk, an influential ally of President Donald Trump, was fatally shot on Wednesday
** Firearms-related stocks often rise following public shootings, driven by expectations that people may increase gun purchases in anticipation of tighter regulations
** Gun maker Smith & Wesson Brands SWBI.O rises 4.7%, while Outdoor Holding POWW.0 gains 3.3%
** Donald Trump Jr.-backed gun retailer GrabAGun PEW.N rise 3%
** At the moment he was shot, Kirk - a staunch advocate of the Constitution's Second Amendment right to bear arms, was responding to a question about gun violence - according to multiple videos of the event posted online
(Reporting by Sanchayaita Roy in Bengaluru)