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30 mm is really like the industry standard....so most of the ...US Optics ...nightforce...leupold..springfield...some places make 35mm available...like US Optics but its not the norm.....just gives you some more MOA adjustments.
30 mm is really like the industry standard....so most of the ...US Optics ...nightforce...leupold..springfield...some places make 35mm available...like US Optics but its not the norm.....just gives you some more MOA adjustments.