Will fit to:
This Adaptor allows you to connect any standard 1/2 x 20 UNF Moderator to your rifle shroud.
This item comes with self tightening tools (no other tools required).
Fits 177, 22, 25 and 30 caliber.
made of aluminium with Black anodising
Shroud side Threads size & pitch: M20 x 1
Outer diameter: 22mm