go to a Diy store and buy some water pipe brackets the ones that hold 2 pipes together and hang it under your barrel thats what i use on my pioneer ag1
i also use two dovetail scope mounts fixed to a Lego brick with my maglite in one side and the other fixed to my silencer
/``\=I LEGO I=/``\
\__/=I LEGO I=\__/ <--- something like this
you dont have to use a lego brick its jus something i had lying around at the time