Machined from hardened steel, this 30mm Picatinny Bolt-On Riflescope Mount from Riton Optics will hold your optic securely on any rifle with a Picatinny rail. Six screws secure the cap of each of the mount&';s two rings for a grip that can withstand the pressure of a day at the range. The mount&';s built-in bubble level makes it clear right away whether your firearm is canted or perfectly upright.