allegations the sig sauer p320 firing on its own.s abc's investigative correspondent david scott. >> i never lost consciousness, but it's a very sick feeling. i was cold at some points, shaking. the fear kind of takes over, adrenaline takes over. >> reporter: it happened so fast, so unexpectedly, britney hilton had no idea she'd been shot. >> the amount of pain -- i just said, am i going to die? please just tell my kids that i love them. i didn't know if i was going to make it to the hospital. >> reporter: she also said she didn't know just how close she came to death. 1 millimeter. the edge of a penny. that's what this texas mom and veteran police officer says saved her life. were you aware at the outset that it was your gun that had gone off? >> no. it happened so fast, you don't really know -- it's not enough time to process what's really happening. >> reporter: the police report says hilton's service gun was still holstered in her purse. >> gun owners don't want to think that their gun can just go off without the trigger being pu

a semi-automatic pistol called the sig sauer p320. she insists it went off on its own.federal lawsuit alleging that the sig sauer p320 has serious design and manufacturing flaws. >> it has a clear capacity to fire without the trigger being pulled under certain conditions. >> reporter: according to hilton's lawsuit, quote, there have been at least 54 reported uncommanded discharges of the p320 in 22 states and washington d.c. sig sauer has not yet filed a response in court to hilton's suit. >> never would i believed it would have just shot me. >> reporter: at least nine other lawsuits are pending against them claiming it went off by itself. sig sauer has denied our request for comment, but publicly stated the p320 meets and exceeds all u.s. standards for safety. in the past the company has blamed plaintiffs for mishandling the gun and said in a report to hilton's police department at the time, quote, a foreign object entered the trigger guard causing the pistol to discharge. >> there's no way that could have gotten into the trigger guard and pulled that trigger. >> repor

. >> a new lawsuit alleging sig sauer's p-320 could go off on its own.