Shield Sights Compact Reflex Mini Red Dot Sight 2.0 4 MOA Dot Reticle RMS2-4MOA Glass Lens FDE. Its tough enough to withstand the harshest recoil and light enough to be virtually unnoticeable. Machined from strong aerospace-grade aluminum the RMS2 features super-fast automatic brightness adjustment allowing you to focus on your target. By eliminating the battery drawer from the original RMS design weve enhanced the sights overall strength and incorporated new electronics for a clear best-in-class view. Its stunning low-profile design makes it ideal for custom pistol builds and our matching low-profile Glock MOS plate ensures the RMS2 sits so low that it co-witnesses without the need for suppressor sights. All of this is offered at a highly competitive price. Specifications for Shield Sights RMS2 Compact 2.0 1x21.85mm 4 MOA Reflex Mini Red Dot Sight: Manufacturer: Shield Sights Finish: Matte Fabric/Material: Aerospace Grade Aluminum Magnification: 1 x Objective Lens Diameter: 22.8 mm Reticle: 4 MOA Dot Illumination Color: Red Eye Relief: Unlimited Adjustment Type: MOA Adjustment Click Value: 1 MOA Emitter Type: Open Lens Material: Polymer Optical Coating: Anti-Reflective Battery Type: CR2032 Battery Quantity: 1 Battery Life: 3 years Gun Make: Universal Gun Model: Universal Length: 1.5 in Width: 1 in Height: 0.8 in Weight: 0.61 oz Condition: New Magnification Type: Fixed Quantity: 1 Red Dot Sights-Footprint: RMS Features of Shield Sights RMS2 Compact 2.0 1x21.85mm 4 MOA Reflex Mini Red Dot Sight Mounts to SHIELDs famous footprint. Utilizes SHIELDs patented mechanism enabling co-witnessing with standard iron sights considerably reducing training times and costs. The mechanism uses no click adjustment making it infinitely more accurate when zeroing. D-shaped crystal-clear lens with no filters to disturb the image of the world through the sight. Machined from aerospace-grade aluminium to extremely precise tolerances while maintaining an attractive modern-looking optic. Auto brightness adjustment so it can always be on and ready. Package Contents: Shield Sights RMS2 Compact 2.0 1x21.85mm 4 MOA Reflex Mini Red Dot Sight Shield Sights RMS2-4MOA-GLASS-FDE: Compact Reflex Mini Red Dot Sight 2.0 4 MOA Dot Reticle RMS2-4MOA Glass Lens FDE