EoTech EXPS31TAN HWS EXPS31T Tan 1x 1 MOA Red Dot Sight

The EoTech EXPS31TAN is a tan-finished 1x red dot sight built for shooters who demand speed and situational awareness. Unlike magnified optics, the EXPS31T's single power and wide field of view let you keep both eyes open—a game-changer for dynamic shooting, tactical training, and hunting scenarios where target acquisition happens fast. The 1 MOA red dot is precise enough for duty work and close-to-medium range hunting, while the true two-eyes-open design keeps your peripheral vision intact and your head naturally behind the gun.

Designed with professional duty use in mind, this red dot is built tough. It's water-resistant to 33 feet depth, operates reliably from −40°F to 140°F, and runs for a full 1,000 hours of continuous use on a single CR123 battery at nominal brightness. The tan finish matches modern tactical gear and AR platforms, and the 7mm raised quick-detach mount co-witnesses with standard lower-third iron sights—a feature that lets you run backup irons without obstruction. The 20 daylight brightness settings plus 10 dedicated night vision settings mean you're covered in bright sunlight or low-light operations with compatible NV devices.

This sight mounts to any 1-inch Weaver or MIL-STD-1913 rail, so it works on AR-15s, carbines, shotguns, and rifles with standard scope rings. The ½ MOA windage and elevation adjustment gives you repeatable, precise zeroing. Built in the USA, the EXPS31T comes ready to run: battery, protective case, and documentation included.

Key Features

• 1x magnification with unlimited eye relief—true two-eyes-open shooting for fast target acquisition
• 1 MOA red dot reticle sized for precision and speed at varied distances
• Night vision compatible with dedicated NV brightness settings (Gen I–III+)
• 7mm raised quick-detach mount for co-witness with lower-third backup iron sights
• Water-resistant to 33 feet (10 m) depth; operates −40°F to 140°F
• 1,000 hours battery life on a single CR123 battery at nominal setting
• 20 daylight + 10 night vision brightness levels for any light condition
• ½ MOA per-click windage and elevation adjustment for precise zeroing
• Tan finish for modern tactical platforms and AR builds
• Mounts to 1-inch Weaver or MIL-STD-1913 rails
• Made in the USA

Specifications

Frequently Asked Questions

Will this red dot work with my backup iron sights?

Yes. The 7mm raised quick-detach base is designed for co-witness with standard lower-third backup iron sights, so your irons won't be blocked by the sight body. This is a professional-grade setup commonly used on combat and tactical rifles.

Can I use this EoTech sight with night vision?

Yes. The EXPS31T includes 10 dedicated brightness settings for use with Gen I through Gen III+ night vision devices, making it fully NV-compatible for low-light and night operations.

What's included in the box?

The EXPS31T comes with the sight itself, a quick-start guide, warranty card, CR123 battery (ready to use), and a protective case.

What rifle platforms does this mount to?

The EXPS31T mounts to any firearm with a 1-inch Weaver or MIL-STD-1913 rail, including AR-15s, modern carbines, shotguns, and most rifles with standard scope rings.