The Sig Sauer ROMEO3 scope is a high-quality red dot reticle that is ideal for tactical engagements and hunting. Its boasts a durable aircraft grade CNC aluminum housing with 1x magnification and 30mm objective lens diameter. Its 6 MOA Dot with multiple intensity settings offers rapid target engagement under a full range of lighting conditions. It features a high transmittance red notch reflector for excellent brightness, light transmittance, and zero distortion. Dependable waterproof (IPX-7 rated for complete water immersion up to 1 meter) and fog proof performance. It is completely immersible in up to 1 meter of water with its IPX-7 rating. The MOTAC™ (Motion Activated Illumination) offers optimal operational safety and enhanced battery life by powering up when it senses motion and powering down when it does not. It comes in at a manageable 1.5 oz. and uses one side-loading CR2032 battery allowing for quick battery replacement without removing the sight from the firearm. This is an original Sig Sauer part featuring a rugged low-profile M1913 Picatinny mount. The Sig Sauer ROMEO3 Red Dot Reflex Sight is perfect for the shooter looking for a reliable, rugged and highly operational scope for all scenarios.