EOTech
Corporate brand
UnclaimedEOTech is a U.S. defense-electronics brand best known for holographic weapon sights, magnified optics, and night-vision systems.
Last updated August 31, 2026
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Overview
EOTech is an American defense and electro-optics company headquartered in Plymouth, Michigan. Its principal products are holographic weapon sights, magnified optical systems, night-vision sensors, and related aiming and observation equipment for military, law-enforcement, and commercial users. The company is particularly associated with the rectangular-window holographic sight format used on small arms and with products designed for close-quarters combat and rapid target acquisition. The brand developed from research associated with the Environmental Research Institute of Michigan, or ERIM, a nonprofit research and development organization whose work included synthetic-aperture radar, laser holography, and aircraft head-up displays. EOTech applied that technical background to firearm optics. Rather than projecting a reticle by reflecting an LED image from a curved or angled lens, its holographic sights use a laser and holographic recording incorporated into the viewing window. The system is intended to present a bright aiming pattern while reducing the practical effects of head position and eye movement at close range. A central engineering challenge was the temperature sensitivity of laser diodes. EOTech developed achromatic holographic optics that compensate for changes in the laser's emission wavelength as temperature varies. This technology helped establish the company's position in the holographic-sight category. EOTech introduced its first-generation holographic weapon sight at the 1996 SHOT Show, where it received an Optic of the Year award from the Shooting Industry Academy of Excellence. A second-generation sight followed in 2000 and received the same award in 2001. EOTech's sights have been adopted by military and law-enforcement organizations, including U.S. military users. Models associated with military procurement include the 553, designated SU-231/PEQ in U.S. service, the EXPS3, designated SU-231A/PEQ, and a grenade-launcher sight designated SU-253/PEQ. Commercial and law-enforcement products have included versions with ring-and-dot reticles, single-dot reticles, ballistic-drop-compensation patterns, and specialized reticles for less-lethal ammunition. Bushnell also marketed non-military versions under the Holosight name. The company broadened its portfolio beyond holographic sights into magnified optics, clip-on magnifiers, and night-vision-related products. It discontinued an archery sight in 2004 as it concentrated more heavily on military and law-enforcement applications. In 2018, EOTech received a five-year, $26.3 million contract from the U.S. Special Operations Command for close-quarters sights and clip-on magnifiers supporting the Miniature Aiming System–Day Optics suite. EOTech was formerly associated with L-3 Technologies. In 2015, the U.S. government sued L-3 over alleged concealment of sight defects involving thermal drift and moisture incursion or reticle fade. L-3 settled the civil-fraud case for $25.6 million, and the matter became a significant event in the brand's history. In 2020, EOTech separated from L-3 Technologies and was purchased by Project Echo Holdings, doing business as American Holoptics, a Koucar Management subsidiary. In 2021, EOTech acquired the Photonics division of Intevac, expanding its capabilities in photonics and night-vision-related technology. EOTech remains an active specialist brand serving defense, public-safety, and commercial optics markets.
History
EOTech's origins are linked to the Environmental Research Institute of Michigan, a nonprofit research organization whose scientists worked on technologies including synthetic-aperture radar, laser holography, and aircraft head-up displays. That research base supplied knowledge relevant to the development of practical holographic optical systems. EOTech subsequently focused that expertise on aiming and observation products for firearms and military applications. The company's defining innovation was the holographic weapon sight. Conventional reflector sights create an illuminated reticle by reflecting light from an LED or similar source, while EOTech's design records a reticle in holographic film incorporated into the viewing window and reconstructs it with a laser. The use of a laser introduced a challenge because laser-diode wavelength can vary with temperature. EOTech developed an achromatic holographic arrangement intended to counteract that variation and preserve reticle stability across changing operating conditions. EOTech presented its first-generation holographic weapon sight at the 1996 SHOT Show. The product won an Optic of the Year award from the Shooting Industry Academy of Excellence, giving the new sight category early commercial visibility. A second-generation sight was released in 2000 and received the same award in 2001. The sights were designed for mounting on small arms using MIL-STD-1913 Picatinny or Weaver rails and could use AA, N, or CR123 batteries, depending on the model. Reticle options included a 65-minute-of-angle ring surrounding a one-minute-of-angle dot, a single dot, ballistic-drop-compensation dot patterns, and specialized patterns for less-lethal ammunition. The brand developed a military and law-enforcement presence as its sights were adopted for close-quarters battle and rapid aiming. The EOTech 553 entered U.S. military service under the SU-231/PEQ designation and was also sold commercially as the M553. The later EXPS3 was accepted by the U.S. military as the SU-231A/PEQ, while a specialized grenade-launcher sight was identified as the SU-253/PEQ. Bushnell marketed non-military versions under the Holosight name. EOTech also produced an archery sight, but discontinued that line in November 2004 as the business concentrated on military and law-enforcement products. The brand later expanded beyond its core holographic sights into magnified optics, clip-on magnifiers, and night-vision sensors. Its military business included a 2018 five-year, $26.3 million U.S. Special Operations Command contract for close-quarters sights and magnifiers supporting the Miniature Aiming System–Day Optics suite. EOTech's corporate history also includes a major product-quality controversy. In 2015, the U.S. government sued the company's former parent, L-3 Technologies, alleging that L-3 had concealed defects known since at least 2006. The allegations concerned thermal drift, which could move the point of aim at temperature extremes, and moisture incursion, which could fog the window and reduce reticle brightness. L-3 settled for $25.6 million and addressed the moisture-related issue; the referenced material does not establish that the thermal-drift issue was fully cured. In 2020, EOTech separated from L-3 Technologies and was acquired by Project Echo Holdings, doing business as American Holoptics, a subsidiary of Koucar Management. The following year, EOTech acquired Intevac's Photonics division. These ownership and portfolio changes positioned EOTech as an independent specialist in defense electro-optics, with activities spanning weapon sights, magnification, photonics, and night-vision-related systems. The brand is active and remains associated with military, law-enforcement, and commercial optics markets.
- 2021
Intevac Photonics acquisition
[1]EOTech acquired the Photonics division of Intevac.
- 2020
Separation from L-3 and ownership change
[1]EOTech separated from L-3 Technologies and was purchased by Project Echo Holdings, doing business as American Holoptics.
- 2018
USSOCOM contract awarded
[1]EOTech received a five-year, $26.3 million contract from U.S. Special Operations Command for close-quarters optics and clip-on magnifiers.
- 2015
L-3 settles federal sight-defect case
[1]L-3 Technologies settled a U.S. government civil-fraud case concerning alleged concealment of thermal-drift and moisture-incursion defects in EOTech sights.
- 2004
Archery sight discontinued
[1]The company discontinued its archery sight as it concentrated more strongly on military and law-enforcement products.
- 2000
Second-generation holographic sight released
[1]EOTech released a second-generation holographic weapon sight, which received the Optic of the Year award in 2001.
- 1996
First-generation holographic sight introduced
[1]EOTech introduced its first-generation holographic weapon sight at the SHOT Show. The product received an Optic of the Year award from the Shooting Industry Academy of Excellence.
Products and positioning
A specialist defense-optics brand centered on holographic weapon sights and advanced electro-optical systems for military, law-enforcement, public-safety, and commercial firearm users.
Firearm optics · 1996
Holographic weapon sights
EOTech's core product family uses a laser and holographic film in the viewing window to present an illuminated aiming reticle. Models are designed for mounting on small arms through Picatinny or Weaver-style rails. Available patterns have included a ring-and-dot reticle, a single dot, ballistic-drop-compensation dots, and specialized less-lethal patterns. The technology is intended to support rapid target acquisition, particularly in close-quarters environments, while compensating for temperature-related laser-wavelength changes.
Military holographic weapon sight
EOTech 553 / SU-231/PEQ
The 553 is a military-oriented holographic weapon sight associated with the U.S. military designation SU-231/PEQ. It represents EOTech's established close-quarters sight format and has also been available in the commercial market under the M553 designation. The model family is designed for small arms and uses an illuminated holographic reticle rather than a conventional reflected reticle.
Military holographic weapon sight
EOTech EXPS3 / SU-231A/PEQ
The EXPS3 is a later EOTech holographic sight accepted and issued by the U.S. military under the SU-231A/PEQ designation. It belongs to the close-quarters aiming segment and is intended to provide a bright holographic reticle on small arms. The reference material identifies military adoption but does not specify the model's original commercial launch date.
Grenade-launcher sight
SU-253/PEQ
The SU-253/PEQ is a specialty EOTech sight accepted by the U.S. military for grenade-launcher applications. It adapts the company's holographic aiming technology to a launcher-specific use case. The available reference identifies the military designation and purpose but does not provide a separate launch date or detailed specifications.
Magnified firearm optics
Magnified optics and clip-on magnifiers
EOTech manufactures magnified optical products and clip-on magnifiers that extend the practical engagement range and observation capability of compatible weapon sights. These products have been supplied for military requirements, including the U.S. Special Operations Command Miniature Aiming System–Day Optics suite. The reference material does not identify individual commercial model names or launch dates.
Night-vision and photonics
Night-vision sensors and systems
EOTech's broader portfolio includes night-vision sensors and related electro-optical systems. The company's acquisition of Intevac's Photonics division in 2021 expanded this part of its technical and product base. The supplied material does not provide enough detail to identify individual sensor models, specifications, or release dates.
Controversies
2015
Federal civil-fraud case concerning sight defects
The U.S. government sued EOTech's former parent company, L-3 Technologies, alleging that it concealed known defects in certain EOTech sights. The allegations involved thermal drift, which could shift the aiming point in extreme temperatures, and moisture incursion or reticle fade, which could fog the viewing glass and reduce reticle brightness. L-3 settled for $25.6 million and repaired the moisture-related defect; the supplied material does not document a complete remedy for thermal drift.
Brand decisions
2021
Acquisition of Intevac Photonics divisionM&ABackground
EOTech operated across weapon sights, night vision, and electro-optical technologies and sought to broaden its photonics capabilities.
Action taken
EOTech acquired the Photonics division of Intevac.
Aftermath
The acquisition expanded EOTech's photonics and night-vision-related technology base.
2020
Acquisition by Project Echo HoldingsM&ABackground
EOTech had previously operated under the ownership structure associated with L-3 Technologies.
Action taken
EOTech separated from L-3 Technologies and was purchased by Project Echo Holdings, doing business as American Holoptics and operating as a Koucar Management subsidiary.
Aftermath
The transaction established EOTech as an independent specialist brand under new private ownership.
2004
Concentration on military and law-enforcement productsStrategyBackground
EOTech had offered an archery sight in addition to its defense-oriented optics.
Action taken
The company discontinued the archery sight in November 2004 and focused its business more closely on military and law-enforcement products.
Aftermath
The portfolio became more concentrated around weapon sights and other defense electro-optical products.
Recent events
EOTECH acquires Intevac Photonics[2]
Intevac sold its photonics division, Intevac Photonics, to EOTECH. The deal included an upfront cash payment of $70 million and potential earn-out payments that could raise the total value to $100 million.
Reported
EOTECH acquires Intevac Photonics business[3]
EOTECH acquired Intevac Inc.’s Photonics business.
Sources3 sources
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