page_title: Muzzle flash
section_title: Muzzle flash
hierarchical_section_title: Muzzle flash / Muzzle flash
context_page_description: Muzzle flash is the visible light of a muzzle blast, which is caused by the sudden release and expansion of high-temperature, high-pressure gases from the muzzle of a firearm. The blast and flash are caused by the combustion products of the gunpowder, and any remaining unburned powder, mixing with the ambient air. The size and shape of the muzzle flash is dependent on the combustion energy of propellant being used, the amount of combustible ejecta remaining, and any devices attached to the muzzle.
context_section_description: The muzzle flash refers to the light emitted by the muzzle blast—both visible and infrared—caused by the high heat and pressure.
caption: Muzzle flash of a revolver. Note the minor flash at the gap between cylinder and barrel.
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