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Designed for Sphinx red-dot(same mounting pattern as Burris fastfire and Docter sights)
Distance between 2x2 poles: 40 mm (1.57 inch) and 20 mm (0.79 inch)
Length: 46.1 mm (1.8 inch)
Thickness: 3 mm (0.1 inch)
Weight (net): 12 g (0.4 ounce)