EOTech Holographic Hybrid Sight I EXPS3-4 with G33.STS Magnifier User Manual

User’s manual for

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The L-3 EOTech Holographic Weapon Sight (HWS)

product line has two different heights above the rail

based on user preference. For this reason, the mag-

nifier does not come preassembled to the mount.

It is user configurable based on the specific model

HWS it will be mounted behind. The 7mm riser,

included, may be required to align the magnifier

optical axis with the sight. Only HWS models with

side buttons or quick detach levers require the use of

the riser. For all other HWS models, the riser should

not be used.

The magnifier system can be configured to switch to the left or to the right based on shooting preference.

Typically, right handed shooters prefer the mount to switch to the left, and left handed shooters to the right.

To configure your HWS you will need a screwdriver (not included). If the spacer is not used, the shorter

screws should be selected. The longer screws are used with the spacer only. If the spacer is being used, place

the spacer on the optic mounting interface. Open the STS mount. Position the mount on the optic mount

interface (or riser) so it opens either to the left or right (based on preference). Insert each screw through the

components, and tighten securely.


Thank you for purchasing L-3 EOTech’s new Generation III

3X magnifier. These magnifiers offer users of the Holographic

Weapon Sight (all models) the additional advantage of vastly

improved target recognition and increased lethality at medium

range distances. The new Switch to Side (STS) mount allows

the user the ability to engage the enemy with confidence in a

Close Quarters Battle (CQB) situation or at distances out to 600

meters or more. This user manual describes the features of the

L-3 EOTech Magnifiers and provides information on their use and maintenance. Please read the instructions

carefully before mounting and using the magnifiers. Always practice proper firearm safety.



Rev B

For use with G33 Magnifiers

or HHS Systems

The G33 is controlled under the Export Administration Regulations (EAR) ECCN 0A987, and may not be exported to a

foreign person, either in the U.S. or abroad, without a license or exception from the U.S. Department of Commerce


3x Magnifier

Magnification Fixed: 3X

Eye Relief: 2.2” (55.8mm)

Field of View: 7.3 degrees

Length: 3.9” (99mm)

Weight: 6.1oz (174g)

Temperature: -40 to 140 F (-40 to 60C)

Waterproof: 33 ft. (10m)

Sealing: Fogproof internal optics

Finish: Non reflective / Rubber coated

Optical Axis Adjustment: Internal adjustment

Retrofits to all HWS models with 7mm riser

Switch to Side (STS) Mount

Length: 1.66” (42.2mm)

Height: 1.18” (30mm) Clears common low profile flip up rear

iron sights

Weight: 2.9 oz (81g)

Color/Finish: Non reflective black with hard coat finish.

Switch Orientation: Ambidextrous mount Flip Orientation to

allow left or right flip

Rail Interface: 1” Weaver or MIL-STD-1913 with Quick

Detach lock

Magnifier Interface: User configurable height with quick

detach mount


• 3x Magnifier • Switch to Side (STS) Mount• 7mm Riser • 4 Screws


The G33 magnifier is designed to be used behind an L-3 EOTech Holographic Weapon Sight (HWS). The

magnifier can be mounted directly behind the HWS. Simply switch the magnifier out of the way and operate

the sight. When used with HWS models 556, 517, EXPS or 516 HWS (with side button interface) the user can

easily operate the sight even with the magnifier in the locked position.

Positioning the Reticle:

Once the magnifier is installed properly behind the HWS, it may be necessary to re-zero the sight. This may

be due to the shooter’s ability to see the target and Point of Impact (POI) more accurately than without the

magnifier. Re-zeroing the sight will prevent a perceived shift in POI when going from no magnification to


After zeroing or re-zeroing the sight, it may be necessary to reposition the reticle image into the center of

the magnifier window. This is aesthetic in nature and has no affect on the sight’s zero. Turn the horizontal

and vertical adjustments on the top or side of the magnifier by hand, with a coin or a flat head screwdriver to

reposition reticle to the desired position.

Switch operation:

To switch the magnifier to the side,

simply push the optic to the right or left,

depending on how it is mounted. To close

the mount, push the magnifier back into

its original position until a hard stop is



The G33 optic includes an adjustable diopter that allows the user to customize

the focus to their particular vision. This feature ensures a crisp, clean aiming

dot for more precision and shot placement. To adjust, simply grasp the diopter

with the thumb and fore finger and turn either clockwise or counter-clockwise

until a clear sight picture is achieved.

This manual is related to the following products: