The EOTech G45 Magnifier with STS Mount is a 5x magnifier supplied on EOTech's Switch-to-Side (STS) quick-detach mount, with approximately 2.6 in (66 mm) of eye relief, a length of approximately 4.4 in (112 mm) and a weight of approximately 12.8 oz (363 g).
5x is the reason to choose the G45 over the 3x G33 and G43. It is the highest magnification EOTech offers behind a holographic sight, which makes target identification at distance far easier — at the cost of a longer, heavier body and a narrower field of view.
Finish: Black — also sold as the G45 5x magnifier with STS mount in Tan, and without a mount as the G45 5x magnifier, no mount.
How It Compares
Want less magnification in a lighter package? The G33 and the shorter G43 are both 3x. Pair the G45 with an EXPS3-4 holographic weapon sight, or buy the pair together as the HHS V hybrid sight system. Browse all red dot magnifiers and read how to choose a magnifier.
Ideal For
- Target identification at distance for vermin control and night fox
- Civilian Service Rifle shot at the longer distances
- Straight-pull AR-15 rifles running a holographic sight
- Shooters who want the most magnification available behind a holographic sight
Key Features
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Magnification: 5x
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Mount: STS (Switch-to-Side) quick-detach mount included
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Eye Relief: approximately 2.6 in (66 mm)
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Adjustment: windage and elevation
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Length: approximately 4.4 in (112 mm)
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Weight: approximately 12.8 oz (363 g)
Technical Specifications
| Magnification |
5x |
| Mount Type |
STS (Switch-to-Side) QD mount |
| Eye Relief |
Approx. 2.6 in (66 mm) |
| Adjustment Type |
Windage & elevation |
| Finish |
Black |
| Length |
Approx. 4.4 in (112 mm) |
| Weight |
Approx. 12.8 oz (363 g) |
| MPN / UPC |
G45.STS / 672294300465 |
What's Included
- EOTech G45 5x magnifier
- STS (Switch-to-Side) quick-detach mount and documentation
UK Delivery & Support
UK-stocked and dispatched tracked from our UK warehouse — no import duties or customs delays — backed by UK-based support and EOTech's warranty.
Frequently Asked Questions
What magnification does the EOTech G45 give?
The EOTech G45 is a 5x magnifier, the highest magnification in EOTech's magnifier range.
Should I choose the EOTech G45 or a 3x magnifier?
The EOTech G45 gives 5x for easier target identification at distance, while the 3x EOTech G33 and G43 are shorter and lighter with a wider field of view.
Does the EOTech G45 with STS mount include a mount?
Yes — this version of the EOTech G45 is supplied with the STS (Switch-to-Side) quick-detach mount. A no-mount version is sold separately.
Does the EOTech G45 have its own reticle?
No — the EOTech G45 has no reticle of its own. It magnifies the reticle of the holographic or red dot sight mounted in front of it.
Can the EOTech G45 be moved aside without removing it?
Yes — the STS mount swings the EOTech G45 to the side so you can return to 1x without taking the magnifier off the rifle.
How much does the EOTech G45 with STS mount weigh?
The EOTech G45 with STS mount weighs approximately 12.8 oz (363 g).
