Being running this mod for 1 year now without any problems so far, but really helps balancing the impact as I only shoot from single bag
1-First remove the shroud cap
2- I found plastic nut from (I may need it later box) then trim it to fit inside the shroud and over the barrel.
Attached the shroud to barrel without the shroud cap.
3- inserts the nut inside the shroud through barrel I used the carbon fiber barrel tensioner as push rod and pushed the nut to end then but some foam snug fit and push it to the end
4- now fill the shroud with any 22 cal pellets or slug that you don’t use any more up to the shroud cap thread then another foam and tighten the shroud cap
Give it a tap or 2 to make the (weight) .
Note
Sorry English not my first language
And the barrel+shroud weight Before was 603.5 grams now its 1313 gram.
Gun will be little louder
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