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. 2 MOA Dot
Featuring High-performance lens coatings for excellent light transmission and dot contrast in any situation, in an ultra-compact size and weight with unlimited eye-relief and parallax-free operation. Aircraft grade aluminum housing and mount. IPX-7 waterproof and fog-proof. 20,000+ hours runtime. CR1632 battery. Green, 2 MOA dot.