Sig Sauer Romeo 1 Mini Reflex 1x22 3 MOA Red Dot 1.0 MOA M1913 Gun Scope The ideal sighting solution for the modern semi-automatic pistol as well as MSR platforms and shotguns Dependable waterproof (IPX-7 rated for complete immersion up to 1 meter) and fog-proof performance Extremely strong and lightweight CNC Magnesium housing ensuring a lifetime of reliable service MOTAC (Motion Activated Illumination) powers up when it senses motion and powers down when it does not provide for optimum operational safety and enhanced battery life 30 mm objective clear aperture