This Noveske sound amplifier, or soundhog if you want to call it, made by MadBull Airsoft  is now available at Redwolf Airsoft... "Constructed by aluminum, 14 mm Counter-clockwise, you can fit it on most of your AEG, including all ECHO1, Classic Army, JG, TM and more. You can turn up the sound by adjusting the internal tube. Also, by our special design, you can hear the special "Metal-punching" noise when shooting!"