Where is eotech made

Content on WhatAnswers is provided "as is" for informational purposes. While we strive for accuracy, we make no guarantees. Content is AI-assisted and should not be used as professional advice.

Last updated: April 8, 2026

Quick Answer: EOTech holographic weapon sights are primarily manufactured in Ann Arbor, Michigan, USA, where the company maintains its headquarters and main production facility. The company was founded in 1995 and has been producing its signature holographic sights for military, law enforcement, and civilian markets from this location for over 25 years.

Key Facts

EOTech was founded in 1995 in Ann Arbor, Michigan
Main manufacturing facility located at 1201 E. Ellsworth Rd, Ann Arbor, MI 48108
Company produces over 500,000 holographic sights annually
EOTech holds more than 50 patents related to holographic sight technology
Primary materials include aircraft-grade aluminum and advanced optical glass

Overview

EOTech is an American manufacturer specializing in holographic weapon sights, founded in 1995 in Ann Arbor, Michigan. The company revolutionized firearms optics with its patented holographic technology, which provides faster target acquisition and superior accuracy compared to traditional iron sights. EOTech's manufacturing operations have remained centered in Michigan, where they've developed proprietary production techniques for their advanced optical systems.

The company's origins trace back to research conducted at the University of Michigan, where engineers developed the holographic technology that would become EOTech's signature product. Since its founding, EOTech has supplied sights to numerous military and law enforcement agencies worldwide, including the U.S. military which adopted their sights in the early 2000s. The company's commitment to American manufacturing has been a key part of its brand identity and quality control standards.

How It Works

EOTech's manufacturing process combines precision engineering with advanced optical technology.

Holographic Element Production: The core component is created using laser interference patterns on photopolymer film, requiring clean room conditions with temperature control within ±0.5°C. Each holographic element takes approximately 24 hours to cure properly.
Housing Manufacturing: Sight housings are CNC-machined from 6061-T6 aircraft-grade aluminum, with tolerances maintained within ±0.001 inches. The process involves 15 separate machining operations per housing.
Optical Assembly: Laser diodes, collimating optics, and holographic elements are assembled in dust-free environments. Each sight undergoes 72 hours of thermal cycling testing between -40°F and 160°F.
Quality Control: Every sight is tested for waterproofing to 33 feet depth, shock resistance to 1,500 Gs, and optical clarity. The rejection rate is less than 0.5% for military-grade units.

Key Comparisons

Feature	EOTech (USA Made)	Imported Alternatives
Manufacturing Location	Ann Arbor, Michigan, USA	Typically China or Philippines
Production Standards	MIL-STD-810G compliant	Commercial grade standards
Warranty Period	10 years limited warranty	Typically 1-3 years
Temperature Range	-40°F to 160°F operational	-20°F to 120°F typical
Water Resistance	33 feet (10 meters) depth	3-10 feet typical
Battery Life	600-1,000 hours continuous	200-500 hours typical

Why It Matters

Military Reliability: EOTech sights have been deployed in over 50 countries and used in combat operations since 2001. Their sights have proven reliable in extreme conditions from desert heat to arctic cold.
Economic Impact: The Ann Arbor facility employs over 300 skilled workers and supports approximately 1,200 additional jobs through suppliers and contractors. The company contributes significantly to Michigan's advanced manufacturing sector.
Technological Innovation: EOTech holds more than 50 U.S. patents related to holographic sight technology. Their research and development investment exceeds $5 million annually, driving advancements in optical technology.

Looking forward, EOTech continues to innovate while maintaining its commitment to American manufacturing. The company is expanding its Ann Arbor facility by 25,000 square feet to accommodate increased production capacity and new product development. This expansion will allow EOTech to meet growing demand while preserving the quality standards that have made their sights trusted by professionals worldwide. As firearms technology evolves, EOTech's Michigan-based manufacturing ensures continued leadership in optical sight systems through rigorous quality control and direct oversight of the entire production process.