Wish I could take credit for doing the hard work of slaving over a hot laptop and actually designing this surprisingly good suppressor but I didn't and to be honest I don't even know where and when I actually found this one as it was on an SD card in my old phone which I knackered by dropping it off a roof over a year ago so it could quite easily be two or more years that it's been hiding away on my SD card in the phone under a pile of other broken phones and suchlike in a drawer in my room,,,