What is inside a flashbang granade?

A flashbang grenade, also known as a stun grenade, typically contains a combination of a bright flash-producing agent and a loud sound-producing charge. The flash is usually generated by a pyrotechnic mixture, such as magnesium or other metal powders, while the sound is produced by a rapid explosion of a small amount of explosive material, like black powder. When deployed, it emits a blinding flash of light and a deafening bang, temporarily disorienting individuals in the vicinity. Flashbangs are commonly used by law enforcement and military units during tactical operations to incapacitate adversaries without causing lasting harm.