Simon at MadBull has mailed in the latest news of the latest gear from them, including new springs and a Novaske licensed sound amplifier:
Moreover, by our special design, you can hear the special “Metal-punching” noise when shooting. Licensed by Noveske. T-shirt and Hats are available at the same time.
Details can be found here. Check the photo, I like the silver color (shiny steel color) most!:
Color coating by special process (Not painting.) Made of premium quality German piano wire.