Crafted for concealed carry, Sentinel II showcases a fusion of advanced features in a sleek, cohesive design. This micro dot maintains the standardized RMSc footprint and slimline profile while maximizing visibility with its 20mm window. The most unique feature is the patented removeable rear sight guide installed in front of the window. This guide provides backup support for micro pistols that sacrifice their rear iron sights for dot sight compatibility. Sentinel II displays a 3 MOA dot in either red or green illumination and is equipped with the Shake N Wake auto on/off feature providing a grab-and-go level of readiness. Specifications for Swampfox Sentinel II 1x20 Dot Sight: Manufacturer: Swampfox Finish: Fully multi-coated Fabric/Material: 7075 Aluminum Magnification: 1 - 20 x Objective Lens Diameter: 20 mm Reticle: 3 MOA Brightness Settings: 10 Adjustment Type: MOA Emitter Type: Open Field of View, Linear: 105.7 - 18.32 ft at 100 yds Parallax: Parallax Free Optical Coating: Multi-Coated/Hydrophobic/Anti-Fog Battery Type: CR2032 Battery Quantity: 1 Lens Finish: Hydrophobic/Anti-Fog Features of Swampfox Sentinel II 1x20 Green Dot Sight 20mm objective lens and slim profile for easy concealment on all builds with RMSc optic cut 10 illumination settings with NV compatibility and Shake N' Wake Auto on/off Removeable Rear Sight Guide provides backup support for guiding your eye to the dot as well as coverage for micro pistols that are missing their rear dovetail Rugged enforced hood design with anti-glare serrations Built to last with 7075 Aluminum construction and 1500 Gs shockproof Package Contents: Swampfox Sentinel II 1x20 Green Dot Sight Slotted Head Wrench Allen Wrench 1.5mm S-Wing Wrench Rubber Cover CR2032 Battery M3x0.5 (Thread Length = 10 mm) - 4pcs #6-32 (Thread Length = 11 mm) - 4pcs M4x0.7 ( Thread Length = 9.8 mmm ) - 4pcs M4x0.7 (Thread Length = 10.8 mm ) - 4pcs M2 (Thread Length = 3mm) - 2pcs PVC Waterproof Plate - 2pcs Black Lens Cloth Tritium Rear Sight Guide