The Meprolight MPO PRO-S Green 3/33 MOA Bullseye Closed Pistol Sight is a fully enclosed, military-grade reflex optic built to withstand direct impacts, harsh weather, and heavy round counts without skipping a beat. Featuring a user-selectable green reticle with a 3 MOA dot, 33 MOA bullseye, and 33 MOA ring, it mounts to any RMSc-footprint pistol and delivers 12 brightness levels, 2 night vision-compatible settings, and Shake Awake technology. At just 1.4 oz, IP67 waterproof, and backed by Meprolight's MEPROGUARD Warranty, the MPO PRO-S Green is the ultimate closed emitter upgrade for carry, duty, or competition.