Hausken Silencer JAKT 184 Laufbuchse 4 mm

Screw-in Distancer for Hausken silencers (min is a JD224 Cal .30) .

Cheap part actually but difficult to get.

1,5 mm thread on the outside to screw in place, works better than expected.

Inside hole with 21mm for my semi weight, you might want to change it for your demand.