Fits to:SMK, Artemis PP750 SHROUD.
This item comes with self tightening tools (no other tools required).
Fits 177, 22, 25 caliber.
the kit comes with 2x o rings if you need to keep
your rifle front sight Put one of our o-ring top of the original o-ring, if you don’t want to use your rifle front sight Replace original o-rings with our one.
Threads size & pitch: M20 X 1
Outer diameter: 22mm