The UTG OP3 Micro SLS red-dot Sight is precision-crafted from durable 6061-T6 aluminum, offering robust construction and IPX7 waterproof reliability for use in any conditions. Designed for versatility, it features both manual and automatic brightness adjustment with a surrounding light sensor, ensuring the dot's intensity adapts perfectly to your environment. The 23mm wide field of view lens provides a clear, expansive sight picture, while the eight brightness settings and crisp click adjustments allow for precise control. With an impressive battery life of over 15000 hr, the OP3 Micro SLS includes a convenient side-loading battery compartment for easy replacements without removing the sight. Compatible with most optics-ready pistol systems, its co-witness height aligns with suppressor-height iron sights, enhancing aiming precision. The sight also comes with a removable low-profile Picatinny mounting base, making it a versatile and reliable optic for pistols and other firearms.