EOTech Magnifier Guide: G33 vs G43 vs G45 Explained

An EOTech magnifier is one of the easiest ways to add more distance capability to a holographic sight or red dot setup. Instead of replacing your close-range optic with a traditional scope, you can keep your rifle fast up close and flip a magnifier into place when you need more target detail.

The main EOTech magnifiers to compare are the G33, G43, and G45. The G33 and G43 are both 3x magnifiers, while the G45 is a 5x magnifier. EOTech also sells magnifier-only options, magnifiers with STS mounts, and complete EOTech magnifier combo packages that pair a holographic sight with a magnifier.

This guide explains what an EOTech magnifier does, how the G33, G43, and G45 compare, when to choose 3x vs 5x, how to set up a magnifier behind an EOTech holographic sight, and whether you should buy a magnifier by itself or an EOTech sight and magnifier combo.

If you already know you want to compare available models, start with our EOTech magnifiers collection.

What Does an EOTech Magnifier Do?

An EOTech magnifier mounts behind a holographic sight or compatible red dot and gives the shooter a magnified view through the optic. Instead of changing your primary sight, the magnifier enlarges the sight picture when you need more detail at distance.

With the magnifier flipped out of the way, your EOTech holographic sight works like normal for close-range shooting. With the magnifier flipped behind the sight, you get magnification for better target identification, more precise aiming, and improved visibility at distance.

This is why EOTech magnifiers are popular on AR-15s, tactical carbines, general-purpose rifles, and duty-style setups. They give you a close-range sight and a magnified sight picture without turning the rifle into a dedicated scoped rifle.

Quick Answer: Which EOTech Magnifier Should You Choose?

Choose the EOTech G33 if you want the classic 3x magnifier with a proven track record and a balanced size.

Choose the EOTech G43 if you want a more compact 3x magnifier that saves rail space and keeps the setup shorter.

Choose the EOTech G45 if you want a 5x magnifier with more reach than the G33 or G43.

For most general-purpose AR-15 builds, a 3x magnifier is the easiest place to start. For a shorter setup, look at the EOTech G43 magnifiers collection. For the classic full-size 3x option, browse the EOTech G33 magnifiers collection. For more magnification, browse the EOTech G45 magnifiers collection.

EOTech G33 vs G43 vs G45 Comparison

EOTech magnifier	Magnification	Best for	Why choose it
EOTech G33	3x	General-purpose rifles, AR-15s, proven 3x setups	Classic EOTech 3x magnifier with a balanced feel
EOTech G43	3x	Compact carbines, shorter setups, limited rail space	Same 3x magnification in a more compact body
EOTech G45	5x	More distance, better target identification, rifles that need extra reach	More magnification than the G33 or G43

The simple version is this: the G33 and G43 are 3x magnifiers, while the G45 is a 5x magnifier. The G33 is the classic full-size option, the G43 is the more compact 3x option, and the G45 is the better choice if you want more magnification.

EOTech G33 Magnifier: The Classic 3x Option

The EOTech G33 magnifier is the classic EOTech 3x magnifier. It is a strong choice for shooters who want a proven magnifier behind an EOTech holographic sight or compatible red dot.

A 3x magnifier is a good fit for general-purpose rifles because it adds useful distance capability without making the setup feel overly specialized. You still keep your fast close-range sight picture when the magnifier is flipped out of the way, but you can flip the G33 into place when you need more detail.

If you want a complete setup with mount included, look at the EOTech G33 3x Magnifier with STS Mount, Black or the EOTech G33 3x Magnifier with STS Mount, Tan.

If you already have a compatible mount, look at the EOTech G33 3x Magnifier, No Mount, Black or the EOTech G33 3x Magnifier, No Mount, Tan.

You can also browse all available EOTech G33 magnifiers if you want to compare mount and no-mount versions.

EOTech G43 Magnifier: Compact 3x Magnification

The EOTech G43 magnifier gives shooters 3x magnification in a shorter, more compact package than the G33. If you want an EOTech 3x magnifier but care about rail space, weight balance, or keeping the rifle compact, the G43 is the model to look at.

The G43 makes sense on shorter carbines, rifles with backup sights, rifles with lasers or lights, and setups where every inch of rail space matters. It gives you the same basic 3x magnification level as the G33, but in a more compact body.

If you want the mount included, look at the EOTech G43 3x Magnifier with STS Mount, Black or the EOTech G43 3x Magnifier with STS Mount, Tan.

If you already have a compatible mount, compare the EOTech G43 3x Magnifier, No Mount, Black and the EOTech G43 3x Magnifier, No Mount, Tan.

You can also browse the full EOTech G43 magnifiers collection to compare available G43 options.

EOTech G45 Magnifier: 5x for More Reach

The EOTech G45 magnifier is the 5x option in the lineup. If you are comparing the EOTech G33 vs G45, the biggest difference is magnification. The G33 gives you 3x, while the G45 gives you 5x.

That extra magnification makes the G45 better for shooters who want more target detail at distance. It can be a good fit for AR-15s, AR-10s, general-purpose rifles, and carbines that may be used beyond typical close-range distances.

The tradeoff is that 5x magnification can feel less forgiving up close than 3x. A 5x magnifier gives you more reach, but the sight picture can feel tighter. If you mostly shoot close-to-mid-range, the G33 or G43 may feel faster. If you want more magnification, the G45 makes sense.

For a complete setup, look at the EOTech G45 5x Magnifier with STS Mount, Black or the EOTech G45 5x Magnifier with STS Mount, Tan.

If you already have a compatible mount, compare the EOTech G45 5x Magnifier, No Mount, Black and the EOTech G45 5x Magnifier, No Mount, Tan.

You can also browse the EOTech G45 magnifiers collection if you are specifically looking for the 5x models.

EOTech 3x Magnifier vs 5x Magnifier

When comparing an EOTech 3x magnifier and an EOTech 5x magnifier, the choice comes down to speed versus reach.

A 3x magnifier, like the G33 or G43, is usually better for close-to-mid-range rifle use. It gives you useful magnification while keeping the rifle fast and forgiving. This makes 3x a strong choice for AR-15s, home defense carbines, range rifles, and general-purpose setups.

A 5x magnifier, like the G45, gives you more magnification and better target detail farther out. It is better if you want more reach behind your EOTech sight and you are willing to accept a tighter sight picture.

Choose 3x if you want balance. Choose 5x if you want more distance capability.

EOTech Magnifier vs LPVO

A common question is whether you should choose an EOTech magnifier setup or an LPVO.

A magnifier setup keeps your holographic sight as the primary optic. That means you still get the speed, wide field of view, and true 1x feel of an EOTech HWS up close. When you need more detail at distance, you flip the magnifier into place.

An LPVO gives you variable magnification in one scope. That can be a great choice if you want a single magnified optic for close-to-mid-range shooting, but even at 1x, an LPVO usually feels different from a holographic sight.

Choose an EOTech magnifier setup if your top priority is close-range speed and you want magnification only when needed.

Choose an LPVO if your rifle is more scope-focused and you want variable magnification built into the main optic.

If you are leaning toward a complete holographic sight and magnifier setup, browse our EOTech sight combos collection. If you are leaning toward a variable-power scope instead, browse our EOTech Vudu scopes collection.

Should You Buy an EOTech Magnifier With STS Mount or No Mount?

Many EOTech magnifiers come in two basic configurations: with an STS mount or with no mount.

Choose a magnifier with STS mount if you want a complete out-of-the-box setup. This is the easier choice for most buyers because the magnifier and mount are already paired together.

Choose a no-mount EOTech magnifier if you already have a compatible mount or plan to use a specific aftermarket mount. No-mount models are useful for shooters who already know exactly how they want to set up their rifle.

For example, the EOTech G33 3x Magnifier with STS Mount, Black is a complete G33 setup, while the EOTech G33 3x Magnifier, No Mount, Black is better if you already have a mount.

The same idea applies to the EOTech G43 3x Magnifier with STS Mount, Black versus the EOTech G43 3x Magnifier, No Mount, Black, and the EOTech G45 5x Magnifier with STS Mount, Black versus the EOTech G45 5x Magnifier, No Mount, Black.

What Is the EOTech STS Mount?

STS stands for switch-to-side. An EOTech STS mount lets you move the magnifier behind the optic when you want magnification, then move it to the side when you want an unmagnified sight picture.

This is the whole point of a magnifier setup. You are not locked into magnification all the time. You can use your EOTech holographic sight unmagnified for close-range shooting, then switch the magnifier into place when distance or target identification matters.

When people search for an EOTech magnifier mount, EOTech STS mount, or EOTech flip to side mount, they are usually trying to solve this exact problem: they want the magnifier to move in and out of the sight picture quickly.

If you want the simplest setup, buy an EOTech magnifier with STS mount included.

Flip-to-Side vs Flip-to-Center Magnifier Mounts

Most shooters are familiar with a flip-to-side magnifier mount. This style moves the magnifier to the left or right side of the rifle when it is not being used. It is simple, common, and works well for standard optic heights.

A flip-to-center mount works differently. Instead of swinging the magnifier off to the side, it can move the magnifier over the centerline of the rifle when paired with a taller optic setup. This can keep the magnifier more tucked in and avoid extra weight hanging off the side of the gun.

For most buyers, an STS flip-to-side mount is the easiest and most familiar option. A flip-to-center setup is more specialized and makes the most sense if you are already building around a taller optic height or riser.

How Far Should an EOTech Magnifier Be From the Sight?

You do not need to obsess over the distance between the EOTech holographic sight and the magnifier. The spacing between the HWS and magnifier is mostly about what feels comfortable and what gives you a clear view.

The more important distance is between your eye and the magnifier. That is the eye relief. You want the magnifier positioned far enough back on the rail that you can shoulder the rifle naturally and still get a clean sight picture.

Set the holographic sight where it works for your rifle, then place the magnifier behind it where your eye relief and rail space make sense. After that, use the magnifier’s adjustments to center the reticle in the magnified view.

Do You Need to Zero an EOTech Magnifier?

No, you do not zero an EOTech magnifier the same way you zero the holographic sight.

Your EOTech holographic sight or red dot is the optic that holds the zero. The magnifier is only magnifying the view through that optic. If your holographic sight is zeroed, the magnifier is showing that same zero.

That said, EOTech magnifiers do have adjustment knobs. Those adjustments are not meant to change your rifle’s point of impact. They are used to center the reticle in your magnified view so the sight picture looks clean and natural.

So the short version is: zero your EOTech sight, then use the magnifier adjustments to center the reticle visually.

EOTech Magnifier Eye Relief

Eye relief is the distance between your eye and the rear lens of the magnifier where you can see a full, clear image.

This matters because magnifiers are less forgiving than an unmagnified holographic sight. If the magnifier is too far forward or too far back, your sight picture may feel cramped, shadowed, or uncomfortable.

As a practical reference, EOTech lists the G43 at about 2.5 inches of eye relief and the G45 at about 2.6 inches. That means you should position the magnifier so your eye naturally lands around that distance when you shoulder the rifle.

For the G33, G43, and G45, the best setup is the one that gives you a full sight picture without forcing your head into an awkward position.

Can an EOTech Magnifier Be Mounted Upside Down or Sideways?

In some mounting setups, especially flip-to-center configurations, the magnifier may appear upside down or rotated when stowed. That can look strange, but it does not automatically mean the setup is wrong.

A magnifier is not an aiming optic by itself. It is magnifying the view through your primary sight. As long as the magnifier lines up correctly, gives you a usable sight picture, and works with your mount, the orientation is not the main issue.

The real questions are whether the mount is secure, the optic height lines up, the eye relief feels right, and the magnified view is clear.

EOTech Magnifiers and Night Vision

If you are building a night vision rifle, do not assume a magnifier is the best tool for that job.

Magnifiers are mainly useful for daytime or visible-light shooting behind a holographic sight or red dot. Under night vision, the setup can get more complicated because you are dealing with focus, optic brightness, eye position, and the night vision device itself.

If night vision use is a major priority, start with a night-vision-compatible EOTech holographic sight such as an EXPS3 or XPS3 model instead of trying to force a magnifier into the setup.

You can browse EOTech EXPS3 sights or EOTech XPS3 sights if night vision compatibility is part of your build.

EOTech Magnifier Combo vs Buying Separately

An EOTech magnifier combo usually refers to a complete setup that pairs an EOTech holographic sight with an EOTech magnifier. EOTech calls many of these packages HHS, or Holographic Hybrid Sight, configurations.

The advantage of buying an EOTech sight and magnifier combo is convenience. You get a matched holographic sight and magnifier setup instead of choosing each piece separately.

If you want a complete setup, browse our EOTech sight combos collection.

Examples include the EOTech HHS II Hybrid Sight, EXPS2-2 with G33 3x Magnifier, Black, the EOTech HHS VI Hybrid Sight, EXPS3-2 with G43 3x Magnifier, Black, and the EOTech HHS V Hybrid Sight, EXPS3-4 with G45 5x Magnifier, Black.

If you want a green reticle package, look at the EOTech HHS Green Hybrid Sight, EXPS2-2GRN with G33 3x Magnifier, Black.

If you already have an EOTech sight, buying a standalone magnifier usually makes more sense. Start with the main EOTech magnifiers collection and choose the G33, G43, or G45 based on your rifle.

Best EOTech Magnifier for an AR-15

For most AR-15s, the best EOTech magnifier is usually a 3x model. That means the G33 or G43.

The G33 is the classic choice. It works well on general-purpose rifles and pairs naturally with EOTech holographic sights.

The G43 is the compact choice. It makes sense if your AR-15 has limited rail space or if you want a shorter magnifier setup.

The G45 is the better choice if your AR-15 is set up for more distance and you want the added reach of a 5x magnifier.

If your rifle is mostly used up close, you may not need a magnifier at all. But if you want one rifle that can move between close-range speed and better target identification at distance, an EOTech with magnifier setup makes a lot of sense.

Best EOTech Magnifier for Close-to-Mid-Range Use

For close-to-mid-range use, choose a 3x magnifier.

The EOTech G33 3x Magnifier is the classic choice if you want a traditional EOTech magnifier setup.

The EOTech G43 3x Magnifier is the better choice if you want a shorter, more compact setup.

Both work well behind EOTech holographic sights and compatible red dots. The right answer depends on whether you prefer the classic full-size G33 or the more compact G43.

Best EOTech Magnifier for More Distance

For more distance, choose the G45.

The EOTech G45 5x Magnifier gives you more top-end magnification than the G33 or G43. That makes it a better fit for target identification, outdoor range use, and rifles that may be used farther out.

If you are comparing the EOTech G33 vs G45, choose the G33 for balance and choose the G45 for more reach. If you are comparing the EOTech G43 vs G45, choose the G43 for compact 3x performance and choose the G45 for 5x magnification.

Can You Use an EOTech Magnifier With a Red Dot?

Yes, EOTech magnifiers can be used behind many compatible red dots, not just EOTech holographic sights. The important part is making sure the magnifier height lines up with the optic and that your rifle has enough rail space for the full setup.

That said, EOTech magnifiers are most commonly paired with EOTech holographic sights. If you want the cleanest and most natural setup, pair the magnifier with an EOTech HWS or choose a complete EOTech sight combo.

Which EOTech Magnifier Should You Buy?

Buy the EOTech magnifier that matches how far you realistically need to see and how compact you want the rifle to feel.

Choose the G33 if you want the classic 3x EOTech magnifier.

Choose the G43 if you want compact 3x magnification.

Choose the G45 if you want 5x magnification and more distance capability.

Choose a model with STS mount if you want a complete ready-to-mount setup. Choose a no-mount model if you already have a compatible magnifier mount.

If you are looking for an EOTech magnifier for sale, browse our EOTech magnifiers collection to compare G33, G43, G45, black, tan, mount, no-mount, and combo options.

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