The Madbull KX3 Adjustable Amplifier is the latset KX3 style flash hider to hit the airsoft market. However, unlike other models the Mad Bull KX3 is licensed by Noveske and features authentic trademarks. It also has the Mad Bull Adjustable Amplifier System. This Amplifier System allows the user to turn up the volume of a airsoft gun by adjusting the internal tube. According to Madbull this special design creates a "Metal-punching" noise when shooting. This flash hider has a totally unique design and would be a great addition to any airsoft rifle.