Gehmann #581 Adjustable Foresight Unit Spirit Level
- Level with medium-to-slow bubble and twin markers
- screws into the foresight and held in place by a lock collar - the spanner is provided
- once comfortable in your shooting position whatever angle of cant you use can be set by turning the bubble ring
- friction collar holds settings without need of tools
- degrees clearly marked for reference
- 581-22 has internal M.18 thread for lens or tube
- Available for M18 (#581-18) and M22 (#581-22) foresights
$ 95.00 CAD