Osight SE MOS Direct-Mount Enclosed Emitter 2 MOA Reflex Red Dot Sight w/ Multi-Reticle System Black MOS. The adapter-free design creates a streamlined low-profile setup with fewer components while its low-deck height allows co-witnessing with most factory iron sights. A versatile Multi-Reticle System lets you choose between a precise 2 MOA dot a highly visible 32 MOA circle or both together giving you the flexibility to tailor your sight picture to the situation. With 8 daylight and 2 night-vision brightness settings you can further adjust the reticle for changing conditions while an aspherical lens provides exceptional clarity with zero distortion and parallax-free performance for fast confident target acquisition.Built for dependable performance with less maintenance the Osight SE MOS delivers up to 140000 hours of battery life in Mode 3 dot-only and features a side-loading CR1632 battery that can be replaced without removing the optic or disturbing zero. Motion activation powers the optic on with movement while brightness memory and a low-battery warning help keep it ready when needed. A CNC-machined 7075-T6 aluminum housing IPX7 waterproof rating and fully enclosed emitter provide durable protection against water dust and debris making the Osight SE MOS a rugged adaptable and easy-to-own optic built for tactical defensive training and everyday carry applications. Specifications for Osight SE MOS Direct-Mount Enclosed Emitter 2 MOA Reflex Red Dot Sight w/ Multi-Reticle System: Manufacturer: Osight Color: Black Magnification: 1 x Objective Lens Diameter: 21 mm Objective Window Size: 21x14 mm Reticle: 2 MOA Dot Illumination Type: LED Illumination Color: Red Eye Relief: Unlimited Adjustment Type: MOA Adjustment Click Value: 1 MOA Emitter Type: Enclosed Weight: 1.59 oz Quantity: 1 Red Dot Sights-Footprint: RMSc Features of Osight SE MOS Direct-Mount Enclosed Emitter 2 MOA Reflex Red Dot Sight w/ Multi-Reticle System FeaturesFeatures the Industry's first enclosed emitter optic with direct MOS slide mountIncludes 8 daytime settings and 2 night vision settingsChoose between a 2 MOA dot a 32 MOA Circle or a dot-and-circle.Side loading battery compartment ensures effortless battery replacement Package Contents: Osight SE MOS Direct-Mount Enclosed Emitter 2 MOA Reflex Red Dot Sight w/ Multi-Reticle System Osight SE MOSAdjustment Tool3 M38 mm Screws2 Spare Battery Compartment ScrewsScrew BoxCleaning Cloth Osight OSIGHTSEMOS: SE MOS Direct-Mount Enclosed Emitter 2 MOA Reflex Red Dot Sight w/ Multi-Reticle System Black MOS