fatal error, pistol with inverted barrel

fatal mistake, critical error, deadly error, software crash, system failure, serious fault, lethal mistake, major error, catastrophic error, fatal flaw, pistol design, inverted barrel gun, upside down pistol, reversed barrel firearm, unusual pistol, experimental gun, gun modification, handgun design, firearm variation, custom pistol, weapon alteration, barrel inversion, handgun modification, pistol concept, unique firearm, firearm design, altered gun, experimental pistol, lethal firearm, unusual handgun, gun engineering, pistol variant, firearm customization, dangerous mistake, critical failure, error warning, system crash, fatal fault, software error, handgun alteration