Viridian RFX1 Reflex Sight Ruger LCP Max Micro Green Dot Black Custom fit for Ruger LCP Max;Direct installation with no plates or modifications;3 MOA green dot reticle;Instant-on activation with user control;Auto-brightness adjustment;Fully multi-coated lens;Battery life up to 30,000 hours;Uses CR1632 battery;Machined aluminum construction;IPX4 water resistant;Operating temperature: -4 degrees to 130 degrees;Dimensions: 1.63 in x 0.81 in x 1.02 in;Objective lens: 16 mm x 15 mm;Weight: 0.53 oz;Auto shutoff after 2 minutes;Includes installation toolstable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Item Category Code: 4000 Product Group Code: 4000L Product Sub Group 1: 4000L1 Inactive: No Second Color: Green