Description Designed for fast target acquisition, a Bresser Red Dot sight can help hunters and competitive shooters respond quickly and accurately when the next shot has to count. Specs Description Bresser OMNI-2 Red Dot Item Number 23-20100 Reticle Color Red Size of Dot 4 MOA Battery Life Long Lasting Battery CR 2032 (Not Included) Brightness Day 1-10 / NV 1-3 Magnification 1x Eye Relief Unlimited Weight 0.6 LBS Waterproof Yes Manual Download Instruction Manual Here Warranty Limited USA Five Year Warranty once registered within 60 days of purchase. Click Here to register. CA Residents: Prop 65 WARNING(S)