EOTech Holographic Hybrid Sight I EXPS3-4 with G33.STS Magnifier User Manual
User’s manual for
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.
USER’S MANUAL FOR
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
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
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
Magnifier Interface: User configurable height with quick
• 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.
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.