How to make a air gun moderator-silencer

This is an Ebook on how to make your own silencer/moderator for you air rifle. 

There are drawings of .177, .22 and .25 silencer parts. You will have to do some machine work as most of the parts will be made out of aluminium and steel. 

This silencer is really effective and you can have a look here: https://www.youtube.com/watch?v=OykQdu7YxuQ