The ROMEO MSR Gen II Red Dot Sight is a sealed compact red dot or green dot sight intended for MSR, carbine, shotgun and air rifle. Brightness is adjusted with a side mounted rotary dial, featuring 10 daytime and 2 night vision settings for quick target engagement in any condition.FeaturesRuggedized Industrial DesignParallax-Free Optical DesignSee-Through Riser Mount for Co-Witness ShootingIPX7 Waterproof Rating