The Sig Sauer ROMEO-MSR is a sealed compact red dot or green dot sight intended for MSR,, carbine, shotgun, and air rifle. Brightness is adjusted with a top-mounted rotary dial, featuring 10 daytime and 2-night vision settings for quick target engagement in any condition.Micro size with macro features. Introducing the JULIET3-MICRO Magnifier. This ultra-compact and lightweight magnifier feature an aircraft-grade CNC aluminum housing and durable, dependable IPX-7 waterproof and fog-proof performance. With its high-performance Dielectric coated prism, the JULIET3-MICRO Magnifier provides excellent light transmission giving you complete clarity when you need it most.ROMEO-MSR Features:High-performance lens coatings for excellent light transmission and dot contrast in any situation.Ultra-compact size and weight with unlimited eye relief and parallax-free operation.Precise 2 MOA DotSlipover, see-through flip-backs1.41" T10 Torx M1913 Skeletonized lightweight Riser Mount for absolute co-witnessTop loading battery compartment with integral brightness control featuring 10 daytime and 2 NV settingsOver 20,000 hours runtime on a CR1632 batteryAircraft-grade aluminum housing and mountDependable IPX-7 waterproof and fog-proof performanceJULIET3-MICRO Features:High-Performance Lens Coatings Including Dielectric Coated Prism for Excellent Light TransmissionUltra-compact Size and WeightAircraft-grade CNC aluminum housing ensures a lifetime of reliable service90Adeg Push-Button Flip-to-Side Magnifier MountDependable IPX-7 Waterproof and Fogproof PerformanceInfinite Guarantee