9mm blank bullets are made specifically for 9mm blank guns and are designed to produce a loud report and flash perfect for signaling, training, film work, or any situation where you need the sound of a shot without a live projectile. These blank rounds create the audible and visual effect of firing but do not fire a conventional metal bullet.Some compatible rounds or specialized cartridges used with blank-cap launchers can release irritants such as pepper or tear gas; these are different from blanks and are intended to disperse gas rather than send a projectile. Always treat them with the same caution you would any ammunition.If you’re searching online, people use terms like blank rounds for sale when buying these items. Be aware that rubber bullets are an entirely different category they are impact munitions used for crowd control and are not the same as blank rounds. A common question is “how many bullets in a 9mm?”  its different according to models.