A rifle flash hider, also known as a flash suppressor, is an attachment for the muzzle of a real-steel rifle. It's main purpose is to reduce the visible signature of the burning gases that exit the muzzle when a rifle is fired. Flash hiders work by dispersing the burning gases and reducing the amount of light emitted from the muzzle. Depending on the design, they can also reduce the sound signature of the rifle, making it harder to detect by sound. Flash hiders come in various shapes and sizes and are designed to fit a variety of rifle types. For instance, some flash hiders are designed specifically for use with AR-15s while others will fit AK-47s or other types of rifles. The type of flash hider you need will depend on your particular rifle model and barrel length. It is important to note that using a flash hider does not completely eliminate the visible muzzle flash; rather, it reduces it. Flash hiders are an important part of a firearm accessory lineup and can be used to improve concealment and accuracy when shooting. Airsoft gun flash hiders are mainly decorative.