Description
- Allow you to use 30mm Rings with 1" tube diameter optics
- Mil-spec phosphate finish
- Black Color
The A.R.M.S. #37 30mm to 1in Ring Adapter Spacers allow you to confidently use 30mm Rings with 1" tube diameter optics. Simply install the steel collars between your optic and 30mm rings for a secure fit. The #37 Ring inserts are all steel with a Mil-spec phosphate finish, for ultimate surface protection.