Accushot Scope mounts 25M4 Has 1" diameter, 21mm width, fits scope with objective up to 45mm. 4 hex screws on top to tightly secure the scope. The removable recoil pin is sited underneath the rear ring. Slot the recoil pin into recess of certain models to prevent the mount moving rearward under heavy recoil.

Precision machined from aircraft-grade aluminum alloy with anodized black matte finish. Complete with Stop-Pin for rock solid application. Ring base designed with locking Hex screws to tightly fit on mounts with airgun/.22 dove-tail dimensions. Reversible locking plate to fit full range of airgun/.22 rails. Great quality at most affordable price.