EoTech 512 Holosight Rev. F - Black, 68 MOA Ring & 1 MOA Dot, Powered by 2 AA Batteries

The EoTech 512 Holosight Rev. F is a compact, combat-proven holographic red dot sight built for shooters who demand speed and reliability without unnecessary complexity. Whether you're setting up a home-defense AR, running a duty rifle, or driving nails at the range, this 1x magnification sight delivers an unlimited eye relief and a clean 68 MOA ring with a 1 MOA center dot—a reticle pattern trusted by professionals and serious shooters alike. The holographic optics are parallax-free, so your point of aim stays true even when your eye position shifts across the window, and the 30-yard field of view at 100 yards gives you plenty of real estate to track fast-moving targets or scan a larger area.

Build quality matters in a sight you're betting your life on. The EoTech 512 wraps its electronics in a rugged aluminum hood and pairs a 1/8-inch solid glass front window with a shatter-resistant laminate rear window—designed to keep functioning even after hard knocks. At just 10.9 ounces, it won't weigh down your rifle or fatigue your shoulders on long days afield. The sight mounts directly to any Picatinny or Weaver rail and comes with a tool-less knobbed bolt for quick installation and removal. Waterproof to 10 feet and internally fogproof, the 512 handles rain, snow, and the elements without hesitation.

Brightness adjustments are manual and intuitive: 20 settings let you dial in the perfect reticle brightness from broad daylight to low-light conditions in seconds, with a 110,000:1 brightness range to cover everything in between. Two AA batteries power the sight—use lithium cells for the widest temperature range (-40 to 150°F) and longest battery life (1000 continuous hours), or run alkaline or rechargeable batteries if that's what you have on hand. An auto shut-down feature (programmable from 4 to 8 hours) prevents accidental drain, and a battery-check indicator flashes on startup so you know you're good to go.

The 512's reputation in the field speaks louder than any marketing claim. Thousands of shooters across law enforcement, military, and civilian applications choose it because it simply works—fast target acquisition, rock-solid zero, and no fuss. If you want a sight that gets out of your way and lets you focus on shooting, the EoTech 512 Holosight Rev. F delivers.

Key Features

• Holographic optics with parallax-free performance—aim stays true regardless of eye position
• 68 MOA circle with 1 MOA center dot reticle for speed and precision target work
• Unlimited eye relief and 1x magnification for situational awareness and rapid target transitions
• 20 manual brightness levels (110,000:1 range) adapt from bright sunlight to dim indoor spaces
• Lightweight aluminum construction—10.9 ounces won't burden your rifle
• Waterproof to 10 feet with fogproof internal optics for reliability in harsh weather
• Mounts to standard Picatinny or Weaver rails with included quick-detach bolt
• Battery flexible: runs on AA lithium, alkaline, or rechargeable cells
• Auto shut-down timer prevents accidental battery drain

Specifications

Frequently Asked Questions

What battery types work with the EoTech 512?

The EoTech 512 accepts two 1.5V AA batteries and is compatible with lithium, alkaline, and rechargeable batteries. AA lithium cells deliver the longest runtime (1000 continuous hours at nominal brightness setting 12) and operate in the widest temperature range (-40 to 150°F). AA alkaline batteries provide about 600 continuous hours and operate from -20 to 140°F. Rechargeable batteries work too if that's your preference.

What rifle or firearm can I mount the EoTech 512 on?

The EoTech 512 mounts to any firearm with a standard Picatinny (MIL-STD-1913) or Weaver rail. This includes most modern ARs, AKs with rail systems, shotguns with rail-equipped receivers, and bolt-action rifles with aftermarket rail mounts. The sight comes with a tool-less knobbed mounting bolt for quick installation and removal.

Is the EoTech 512 waterproof, and will it work in rain or snow?

Yes. The EoTech 512 is submersible to 10 feet of depth and has fogproof internal optics, so it performs reliably in rain, snow, and wet conditions. The sight's sealed construction protects all electronics from moisture and harsh weather.

What's the difference between the EoTech 512 and other holographic red dot sights?

The EoTech 512 uses transmission holography technology to create a parallax-free sight picture—meaning your point of aim stays true even when your eye moves around inside the window. This makes target reacquisition and rapid shooting faster and more intuitive than traditional reflex sights. The unlimited eye relief, bright 68 MOA ring with 1 MOA dot, and proven durability make it a favorite for duty, home defense, and tactical applications.