Cautionary Note: All silencers require a $200 tax stamp from the BATFE in the USA. I caution U.S. readers not to produce one unless you pay the tax and acquire the proper paperwork first. Any time you are breaking new ground in the world of firearms development, especially when it involves new technologies, we caution you to get the best legal advice in navigating and lawfully complying with the multiple and confusing world of local, state, and federal gun laws. The only stated purpose of this article is to report on new developments and the adaption of new technologies for...