MORE ABOUT THE

G45™ Magnifier

Overview

The G45™ is a high-performance 5x magnifier designed for precision and versatility. Its quick-transition mount allows fast switching between 5x and 1x, while tool-free vertical and horizontal adjustments, a wide field of view, and an adjustable diopter ensure sharp, accurate targeting. Compact and lightweight, the G45™ is compatible with all EOTECH HWS® models, making it ideal for professional shooters seeking enhanced range and detail.
Available kitted with our switch-to-center (STS) mount or No Mount option that does not include a mount.

Tech Specs

L × W × H

3.9" x 2.3" x 3.3" (99 x 58.4 x 83.8 mm)

Weight with STS™ Mounting System

12.8 oz (362.9 g)

Weight without STS™ Mounting System

9.5 oz (269.3 g)

Mount

1" Weaver or MIL-STD-1913 rail

Fixed Magnification

5X

Eye Relief

2.6" (66 mm)

Field-Of-View

Exit Pupil

Country of Origin

Assembled in USA

Performance

Water Resistant

33 ft. (10 m) depth


Operating Temperate

-40°F to 140°F (-40°C to 60°C)

Sealing

Fog Resistant Internal Optics

Included in the Box

  • Magnifier

  • Switch-to-Side Mount *not included with No Mount option

  • Warranty Card

  • Quick Start Guide

Reach Further, Faster.

EOTECH magnifiers add instant range and precision to any HWS model—flipping from 1× to magnified in seconds while retaining speed, clarity, and rugged, battle-ready performance.

Quickly flip between close-quarters and long-range views without losing zero — perfect for fast-changing environments.

 

Ambidextrous and equipped with a locking, adjustable, quick-detach lever system allowing for immediate attachment or removal.

 

Built to military standards with rugged construction, waterproofing, and fog-resistant optics for absolute reliability in the field.

 

Holographic technology keeps the HWS’s 1 MOA dot crisp and consistent, even at 3× or 5× magnification, for precise accuracy at distance.

 

Restrictions & Considerations

Return Policy

Please note that ALL SALES OF SIGHTS ARE FINAL. No returns or exchanges on sights will be accepted. If purchased item arrives damaged or defective, please contact EOTECH Technical Support to obtain a RMA number.

Export Restrictions

Export of this product is strictly controlled and enforced by the U.S. Department of Commerce, Bureau of Industry and Security, as prescribed in the Export Administration Regulation (EAR), Title 15, Code of Federal Regulations, Parts 730-774. EOTECH, LLC does not authorize any of its dealers or distributors to export this commodity without prior, written authorization, and will not provide warranty or post-sales support of unauthorized international exports.

Prop 65 Warning

This product can expose you to chemicals including (Epichlorohydrin, Phenyl, Hydrazine or Cumene) which are known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.

Overall rating: 4.9601064 / 5 from 376 reviews.

AI Generated Review Summary

The G45™ Magnifier is highly praised for its excellent build quality, clear and crisp sight, and outstanding optical performance. Customers appreciate its solid mount and forgiving eye box, along with the fantastic clarity and amazing glass. The outstanding customer service and fast shipping further enhance the overall experience.

Summary topics

  • Build Quality: 12%
  • Optical Clarity: 11%
  • Sight Picture: 4%
  • Mount Solidity: 5%
  • Eye Box Performance: 4%

Review topics: ["fit","size","weight","issues","performance","quality","cover","price","looks","shipping","design","work","feel","durability","movement","support","construction","setup","build","set","position","height","instructions","service","equipment","feature","magnifier","glass","eye relief","optic"].

Review highlights

  • "Great quality sight easy to mount and adjust."Ryan L.
  • "Great eye relief, clear glass, solid mount included."KP
  • "Clear glass, solid mount, in my opinion it’s the best option on the market."Christopher M.

Reviews

Really enhances the 3-4 reticle

"Excellent glass as always. Bearable weight for the size and magnification. Works great with the 3-4’s reticle, as a matter of fact it really elevates the usability of that reticle. Makes me want to replace all my 3x magnifiers. Did not disappoint. Went from g33 to g43, wasn’t fully satisfied, but going up to the g45 was definitely worth it!"

Sandor G. (5/5)

5x Five Stars

"This is fantastic! Crystal clear, and flawless! I wanted a little more than the 3x so if you’re thinking about what magnification to add on, you’ll be more than satisfied with the 5x. Love it! Shot out to EOTech for taking care of Veterans! You guys are great! Thank you!"

Mitchell K. (5/5)

Must have for EXPS 3-4

"If you have a 3-4 this is a must. Makes that reticle work really well. Mounted on a third party mount, works great. It’s a chunkier piece, but the clarity and the eye relief compensates for it. I went from a g33 to a g43. Didn’t like that switch, but going up to the g45 was definitely the right choice."

Sandor G. (5/5)

Perfect for my setup

"Perfect for my setup"

Lucas R. (5/5)

Try before you buy.

"Solid construction and clear glass. Flips smoothly and firmly. That said, 5x feels a bit overpowered for typical HWS use. On a standard 16” AR-15, the extra zoom sacrifices too much field of view and makes quick transitions harder. Personally, I’d go with the G33 instead. The 3x strikes a much better balance for the kind of shooting I do."

Kyle M. (5/5)

5X magnifier

"The 5X is what my DCR needed. It’s A proven magnifier and Eotech delivers. I’ll need another one ."

Brandon C. (5/5)

Great combo with a HWS

"What a great combo. This is the perfect setup and helps older eyes. Was able to hit targets out to 100 yards with ease, after zeroing in at 25 yards (zero photo). I made a small mistake when mounting both items, I had them too close together (see photo). Do yourself a favor and buy this combo."

Michael F. (5/5)

Game Changer for Dual Dot Setups

"The glass on the G45 is insanely clear. I’m running a 300 Blackout with an EOTech two-dot reticle, and picking up that second dot without magnification wasn’t ideal. Talked it over with a few buddies who run setups like Q and Noveske builds, and they all said the same — a magnifier is a must. Picked up the 5x and it completely changed the game. Second dot is sharp and easy to grab now. Solid piece of kit. Would definitely buy another if the wallet wasn’t still hurting :)"

Morgan B. (5/5)

Perfection.

"Not much to say, just, absolutely love it."

Roy H. (5/5)

Great magnifier

"Exactly what I expected for a premium magnifier. Very good glass and forgiving eye box."

MATTHEW R. (5/5)

Q&A