Blank turret without predrilled settings for customization of Aimpoint® CompM5b ballistic settings.The custom turret is designed to allow the sight to adapt to any rifle.By using the Drill tool, you can create your own bullet drop settings in the Custom turret. The result is a turret tailored to your specific rifle and needs.Blank turret without predrilled settings for customization of Aimpoint® CompM5b ballistic settings.The custom turret is designed to allow the sight to adapt to any rifle.By using the Drill tool, you can create your own bullet drop settings in the Custom turret. The result is a turret tailored to your specific rifle and needs.