The Holosun ARO-MRS-RD is a rugged open reflex sight featuring Holosun's Multi-Reticle System (MRS), allowing users to switch between a 2 MOA red dot, a 65 MOA circle, or a combination of both for flexible aiming solutions. It offers 12 brightness settings, including night vision-compatible levels, and utilizes a crisp red Super LED for high visibility in all lighting conditions. The Shake Awake(TM) feature conserves battery life by powering down during inactivity. Housed in durable, lightweight aluminum, the ARO-MRS-RD is waterproof, parallax-free, and built for fast target acquisition-ideal for handguns, rifles, or shotguns in any shooting scenario.