Gehmann 581 Front Sight Spirit Level

Gehmann 581 Front Sight Spirit Level

• Available with M18 or M22 thread
• Medium-to-slow bubble that runs through twin markers
• 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 your position on the rifle whatever angle of cant you normally use can be set by simply rotating the whole bubble on its ratchet system
• A friction collar holds your setting without need of more tools
• Laser engraved degrees marked for reference