581-22 M22 Spirit Level by Gehmann

Key Features:

• M.22 medium-to-slow bubble that runs through twin markers
• Internal M.18 thread for attaching a lens, filter screen or anti-glare tube (1. image) – accepts 558 direct
• Screws into the foresight and is held in place by a lock collar – a C-spanner is provided to lock it in position
• Once in position on the rifle whatever angle of cant you normally use can be set by simply rotating the whole bubble on it`s ratchet system
• A friction collar holds your setting without need of more tools
• Laser engraved degrees marked for reference