The EOTech EXPS3 Extreme Holographic Sight is the shortest, lightest holographic weapon sight on the market today, and allows for an elevated level of precision in short to medium range tactical environments like never before.image The EOTech EXPS-3 Red Dot Sight features easily adjustable side buttons with a single, quick release throw lever to easily attach or remove the sight. The EOTech EXPS 3 Waterproof Holographic Red Dot requires 2 3/4 inches of rail space at most thanks to a shortened base. The waterproof and fogproof design will withstand tough environments and perform in any tactical environment and with the average battery life being 1000 hours, you can be sure the EOTech EXPS 3 Holographic Weapon Sight is ready for action at any moment, whether day or night. In combination with an innovative holographic tool, the EOTech 5-Power Magnifier w/ Side Mount Switch delivers the ability to spot targets in tight-quarters, while also shifting into a long-range surveillance system. This Magnifier from EOTech has the durability and light transmitting capability, providing long-lasting use and keen visibility. And its Switch-to-Side mount enables EOTech 5-Power Holographic Hybrid Sight Magnifier to be quickly and easily disengaged. So, if you're in the market for a top-notch addition to your sight, be sure to choose EOTech 5-Power G45 Magnifier.