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SKULL MOUNTING SYSTEM SETUP

 

 

Turn Adjustment Dials counter-clockwise (left) to make the Skull Mounting System is fully open.

 

Place open Skull Mounting System on your head so that the Front Plate is centered over the 
bridge of your nose. Begin adjustment by firmly pressing down on the top of the Front Plate while 
tightening the Rear Adjustment Dial (turn clockwise to tighten). 

 

The distance from the top of the eyebrow to the bottom of the Skull Mounting System should be 
approximately 0.5” - 1” as shown. The bottom of the Rear Pad should rest above nape of the neck.

      

FIT DIAL

                                       

      

OPERATION

 

Proceed to tighten the front and rear Top 
Adjustment Dials until the Skull Mounting 
System fits securely on head. Readjust 
dials as desired to achieve comfortable fit 
and positioning. 

 

Once the front and rear Top Adjustment 
Dials are set, the Rear Adjustment Dial 
may need to be tightened again.

Right Side

Side Pads

0.5”-1”

Chinstrap  

Buckle

Front 

Head-Loc  

Slider

Rear  

Adjustment 

Dial

TIGHTEN

(Skull Mounting System Fully Closed)

TURN DIALS CLOCKWISE TO TIGHTEN

LOOSEN

(Skull Mounting System Fully Open) 

TURN DIALS COUNTER-CLOCKWISE TO LOOSEN

Side Rail

Adjustment Dial

Rear  

Comfort Pad

Chinstrap Buckle 

(LED Version Available)

Head-Loc

®

  

Adjustment Sliders

Front  

Plate

Large Counterweight 
(with 11/4” Screws)

Small Counterweight 
(with 

5

/

8

” Screws)

(Back of Skull Mounting System)

Attached  

Counterweight

      

CHINSTRAP OPERATION

 

Fasten the Chinstrap Buckle. With both hands, pull the two Rear Head-Loc Sliders on 
the lower webbing straps toward your chin until snug.

 

With both hands, pull the two Front Head-Loc Sliders on the webbing straps that come 
from the front temples of the Skull Mounting System toward your chin until snug.

Rear Pad

Rear

Left Side

Front Plate

Top  

Adjustment 

Dials

Rear  

Head-Loc  

Slider

ABOUT YOUR SKULL MOUNTING SYSTEM

This manual covers the basic operating and fitting instructions for the Ops-Core Skull Mounting System. The 
Skull Mounting System is a multi-purpose headgear integration device that is compatible with a variety of 
attachments. The Three Dial Adjustment system accommodates a full range of head shapes and sizes. 

INTRODUCTION

COMFORT PAD SETUP

The Skull Mounting System is designed to fit the majority of head 
sizes. However, some users with smaller head sizes may find the 
thin pads to result in a loose fit. If this occurs, replace the back and 
side pads with the thicker comfort pads shown in dark grey.

COUNTERWEIGHT KIT

 

(OPTIONAL) 

If you purchased a Counterweight Kit with your Skull Mounting 
System kit includes (1) Small and (1) Large Counterweight with 
corresponding hardware.

COUNTERWEIGHT 

ATTACHMENT 

NOTE: ONLY ATTACH A COUNTERWEIGHT IF YOU  
NEED TO COUNTERBALANCE AN ATTACHMENT 
AT THE FRONT OF THE Skull Mounting System. 

Align Counterweight holes to the holes on the back of the Skull 
Mounting System. Hold Counterweight in place and use your 
fingers to loosely attach a screw through the Counterweight and 
Skull Mounting System. Repeat for the remaining 2 holes.  

Finish by using a screwdriver to tighten all 3 screws from the 
outside of the Counterweight, making sure the Counterweight  
is securely fastened to the Skull Mounting System. 

FIT & ADJUSTMENT

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