Zero Tech Optics Thrive HD 1x 28mm x 20mm 3 MOA Red Dot Reflex Sight - Low Mount

The Zero Tech Optics Thrive HD is a compact 1x reflex sight built around a wide 28mm x 20mm viewing window and an industry-standard 3 MOA red dot reticle. The "L" in the THDRS28L designation denotes the included Low Mount, which clamps directly to a standard Picatinny rail for a low-profile co-witness with iron sights on rifles and PCCs.

At only 1.77" long and weighing roughly 3.10 oz, the Thrive HD reflex adds minimal bulk to any host. Unlimited eye relief and a 1 MOA click value on both windage and elevation deliver fast, repeatable zeroing. The optic body is built on the popular RMR footprint, allowing direct mounting to slides cut for that pattern, while the included low mount handles any standard Picatinny rail.

Multi-coated optics provide a clear sight picture in varied lighting conditions, and a single CR2032 battery powers the unit for up to 50,000 hours. User-friendly features include shake-awake technology plus auto-on and auto shutoff functions that conserve battery life between sessions, and a molded rubber cover protects the lens in storage and transport.

The Thrive HD reflex is rated fog proof, shock proof, and waterproof for reliable performance in harsh weather and on hard-recoiling hosts. 11 brightness settings let the dot be tuned for bright sun or low-light indoor use. This Thrive HD ships in New condition.