The Shield RMS-W Waterproof Reflex Sight is engineered to withstand harsh environmental conditions with a 4 MOA dot reticle and waterproof rating to 20 meters for over 30 minutes of submersion.Shield RMS-W Waterproof Reflex Sight with 4 MOA DotGasket sealed aluminum housing for complete water resistanceHard-coated polymer lens for enhanced durabilityParallax free optical designCompatible with night vision equipmentCR2032 3V lithium battery poweredCompatible with RMS RMS-C SMS and J-Point mounting footprintsDesigned for tactical and sporting applications where reliability in extreme conditions is essential. The reinforced frame design and watertight seal make this sight ideal for law enforcement military and outdoor enthusiasts who demand performance in any weather.