This adaptor allows you to connect any standard 1/2 x 20 UNF moderator to your rifle shroud.
before bid you need to make sure you can take the end cap off some are hard need to be heated then unscrew it.
Fits to Kalibrgun Cricket Old and New models
177, 22, 25 and 30 caliber
Outer diameter: 29.50mm
Front threads: 1/2 UNF X 20
Back Threads: M27 X 1 male