Nikko Stirling Red Dot Sight w/3/8 Mounts 1x25mm 4 MOA Dot Reticle Matte Black. Specifications for Nikko Stirling 1x25mm Reflex Red Dot Sight w/3/8 Mount: Manufacturer: Nikko Stirling Color: Black Magnification: 1 x Objective Lens Diameter: 25 mm Reticle: 4 MOA Dot Illumination Color: Red Emitter Type: Enclosed Weather Resistance: Yes Shockproof: Yes Fogproof: Yes Weight: 3.6 oz Condition: New Quantity: 1 Red Dot Sights-Footprint: Not Applicable Ring Height: 8-Mar in 3/8 in Features of Nikko Stirling 1x25mm Reflex Red Dot Sight w/3/8 Mount 3/8'' scope ring mounts and extension tube (1.12inches / 30mm) Package Contents: Nikko Stirling 1x25mm Reflex Red Dot Sight w/3/8 Mount Lens Cover Lens Cloth Manual Nikko Stirling NRD2538: Red Dot Sight w/3/8 Mounts 1x25mm 4 MOA Dot Reticle Matte Black