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Gentex Active Shooter Operator's Manual

Made by: Gentex
Type: Operator's Manual
Category: Motorcycle Accessories
Pages: 16
Size: 1.35 MB

 

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FOR LAW ENFORCEMENT AND SPECIAL OPS

Equipped with Ops-Core Multi-Hit Handgun Face Shield

© OPS-CORE 2017  UM-1022 REV. A

ACTIVE SHOOTER HELMET KIT

OPERATOR’S MANUAL

Featuring:


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4

5

6

8

9

10

11

12

13

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INTRODUCTION

COMPONENTS

SIZING GUIDE

LINER SETUP

CHINSTRAP OPERATION

FACE SHIEL OPERATION

FACE SHIELD INSTALLATION

ARC OPERATION

MAINTENANCE

OPERATOR NOTES

TABLE OF CONTENTS


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ACTIVE SHOOTER HELMET KIT INCLUDES:

(1) Gentex TBH-IIIA Helmet Shell equipped with the Ops-Core Multi-Hit Handgun Face Shield, Ops-Core 
Accessory Rail Connectors (ARCs), Ops-Core 360° Liner and 4-Point Head-Loc H-Nape Chinstrap

INTRODUCTION

Pre-Configured for Quick Use by 
Law Enforcement Patrol & Special Operations Teams

The Gentex

®

 Active Shooter Helmet Kit is a Tactical Ballistic Helmet (TBH) System, preconfigured with the 

Ops-Core

®

 Multi-Hit Handgun Face Shield, and ideal for law enforcement first responders and active shooter 

situations. The base shell provides head protection against handgun, fragmentation, blunt force trauma, and 
environmental threats, while the face shield protects the face from handgun threats. Additional stability, 
and increased protection and comfort is added by the Ops-Core ACH 360° Liner Kit and 4-Point Head-Loc

 

H-Nape Chinstrap. The Gentex Active Shooter Helmet Kit is meant to be stored in law enforcement patrol 
vehicles for immediate access in critical response situations. 

Gentex TBH-IIIA

Helmet Shell

Ops-Core Multi-Hit 

Handgun Face Shield

Ops-Core 4-Point Head-Loc 

H-Nape Chinstrap

Ops-Core 360° Liner

Ops-Core Accessory Rail 

Connectors (ARCs)

4


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TBH HELMET SHELL

 

• Low cut shell 

 

• Protection against handgun, fragmentation, blunt force trauma,  

and environmental threats

OPS-CORE MULTI-HIT HANDGUN 
FACE SHIELD

 

• Defends against multiple impacts from handgun threats 

 

• Ballistic protective lens: 9mm 124gr FMJ @ 1,400 fps (427 m/s) 

and 44 Cal Magnum 240gr SWCGC @ 1,400 fps (427 m/s)

OPS-CORE ACCESSORY RAIL 
CONNECTORS (ARCS)

 

• Durable, lightweight construction

 

• Multiple non-snag attachment points

OPS-CORE 360° LINER

 

• Maintains blunt impact protection 

 

• Designed not to retain water or sweat 

OPS-CORE 4-POINT HEAD-LOC 
H-NAPE CHINSRAP

 

• Designed for improved stability 

 

• Custom webbing weave provides greater durability and ventilation

5

COMPONENTS


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SIZING GUIDE

Determining Helmet Size

Helmet sizes are Small, Medium, Large, and X-Large. To determine size, you must (1) measure and record 
the wearer’s head length, (2) measure and record the wearer’s head breadth, (3) measure and record the 
wearer’s head circumference, and (4) select the proper helmet size based on the sizing charts provided.

6

TOOLS/EQUIPMENT NEEDED: 

Caliper, Ruler, and Tape measure

1

  MEASURE HEAD LENGTH

Use a caliper and a ruler to measure the distance (to 
the nearest 1/16 inch) from the point between the 
eyebrows to the back of the head. Ensure that the 
caliper touches the skin lightly and does not indent the 
skin. Record the measurement.

2

  MEASURE HEAD BREADTH

Use a caliper and a ruler to measure the maximum 
head width (to the nearest 1/16 inch) above the ears. 
Ensure that the caliper touches the skin lightly and 
does not indent the skin. Record the measurement.

 

 

 

Between 

eyebrows

Back of 

head

Caliper

Ruler

HEAD LENGTH

Caliper

Ruler

HEAD BREADTH


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Tape measure

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3

  MEASURE HEAD CIRCUMFERENCE

Use a tape measure to determine the maximum head 
circumference (to the nearest 1/16 inch) above the ears. Ensure 
that the caliper touches the skin lightly and does not indent the 
skin. Record the measurement.

 

4

  SELECT HELMET SIZE

Referring to the tables below (for inches or millimeters), select 
the helmet size based on head length, head breadth, and head 
circumference.

   INCHES:

Helmet Size

Head Length (in.)

Head Breadth (in.)

Head Circumference (in.)

Small (S)

Up to 7¼

Up to 6½

Up to 21¼

Medium (M)

7¼ to 7¾

21¼ to 22½

Large (L)

7¾ to 8¼

22½ to 23½

Extra Large (XL)

8¼ and greater

6½ and greater

23½ and greater

   MILLIMETERS:

Helmet Size

Head Length (mm)

Head Breadth (mm) Head Circumference (mm)

Small (S)

Up to 184

Up to 165

Up to 539

Medium (M)

184 to 196

165

539 to 571

Large (L)

196 to 209

165

571 to 596

Extra Large (XL)

209 and greater

165 and greater

596 and greater

NOTE:

 For best sizing, wear the helmet with all forms of equipment that will be used during an operation. 

Include length of hair, balaclava, cold-weather gear, protective mask, and communication equipment. If unable 
to obtain size with actual helmets, select largest size helmet based on any of the three measurements obtained 
using a caliper and/or tape measure.


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 LINER SETUP

Ensure the helmet is properly adjusted for a snug, secure fit at all times when the helmet 
is worn. Failure to do so can result in an unstable helmet that will not protect the wearer.

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  WARNING

1

  PLACE THE HELMET ON THE HEAD

Leave the chin strap loose for now. Allow the helmet to settle on the head for a few minutes before 
checking the fit. Ensure that the front pad is just above the eyebrows. If necessary, adjust the fit as follows:

¼”  

Comfort Pads 

½”  

Comfort Pads 

¾”  

Comfort Pads 

Helmet too high or too tight: 

Remove the ½-inch-thick comfort pads 

and install the ¼-inch-thick pads as 

shown. Re-check the fit.

Helmet too low or too loose: 

Remove the ½-inch-thick comfort pads 

and install the ¾-inch-thick pads as 

shown. Re-check the fit.

HEADSET PAD CONFIGURATION

For use of the 360

°

 Liner in conjunction with a banded headset, simply remove the Comfort Pad located at 

the crown as shown below. 

Remove


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Ensure the helmet is properly adjusted for a snug, secure fit at all times when the helmet 
is worn. Failure to do so can result in an unstable helmet that will not protect the wearer.

9

 CHINSTRAP OPERATION

  WARNING

1

  LOOSEN HEAD-LOC SLIDERS 

Loosen all (4) Head-Loc Sliders by sliding them away from the chin cup.

2

  CONNECT CHINSTRAP BUCKLE 

Place the helmet on your head and connect the low profile chinstrap 
buckle. This is easiest when placing your index fingers behind each 
side  of the buckle as shown.

3

  TIGHTEN  

        FRONT SRAPS

Tighten the front straps by 
pulling the Head-Loc Sliders 
toward your chin.

4

  ADJUST 

        NAPE PAD

Position comfortably (as low as 
possible) on the back of your 
head. Pull Head-Loc Slider with 
your right hand.

5

  TIGHTEN SIDE  

        STRAPS 

Tighten the side straps by 
pulling the Head-Loc Sliders 
toward your chin.


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FACE SHIELD OPERATION

The Ops-Core Multi-Hit Handgun Face Shield features a new ARC mounting mechanism that allows for secure 
and stable attachment. When properly installed, the face shield transforms any helmet into the ultimate 
defense against multiple impacts from handgun threats.

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FORE/AFT POSITIONING

ADJUSTING THE FACE SHIELD

Loosen both Thumb Knobs by rotating counterclockwise. 
Locate the desired fore/aft position and tighten both 
Thumb Knobs clockwise.

Release both Brake Locking Handles and adjust the face shield to 
desired position. Rotate the Brake Locking Handle to secure.

1

2


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11

 FACE SHIELD INSTALLATION

PREPARE THE FACE SHIELD

Rotate both Brake Locking Handles to the 
locked position and both Rail Mounting 
Handles to the open position.

INSERT CONNECTOR SHOES

FASTEN RAIL MOUNTING HANDLES

Align and insert both Accessory Rail Connector Shoes into 
the ARC Rails on your helmet until the T-Lock engages with 
the desired ARC Rail slot, using slot 2, 3, or 4 only. Be sure 
to align to the same slot on both sides.

Fasten both Rail Mounting Handles to 
secure the face shield in place.

3

Accessory Rail Connector (ARC) Shoe

T-Lock


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ARC OPERATION

The Ops-Core Accessory Rail Connectors (ARCs) transform ACH style helmets into a streamlined platform 
capable of integrating mission enhancing components and accessories such as visors, mandibles, lights, 
and cameras. Multiple non-snag attachment points provide quick, easy, and secure donning and doffing 
of accessories and clean routing of external wires and cables in a streamlined configuration to minimize 
user distraction.

12

Slide Picatinny Adapter to 
preferred  position on the 
ACH-ARC.

1

Tighten screw to lock 
the adapter into place.

2

PICATINNY ADAPTER

ACH-ARC ASSEMBLY

Connects devices compatible 
 with 1911 Picatinny Rail

Attach desired accessory 
to Wing-Loc  Adapter 
using the through-holes.

1

Pinch tabs on the Wing-
Loc Adapter and slide 
to preferred position on 
the ACH-ARC.

2

WING-LOC ADAPTER

Use as a base to mount 
a variety  of headborne 
accessories 

Chinstrap

Hole

Chinstrap

Anchor

T-Nut

Ballistic Screw


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MAINTENANCE

PREVENTIVE MAINTENANCE CHECKS

Perform preventive maintenance tasks for each component as described in the table below.

Component

Examine for:

Helmet is not ready if:

Helmet Shell

 

• Gouges, scrapes, cracks, delamination 

or other damage extending below 
the paint

 

• Loose or damaged edging

 

• Gouges, scrapes, cracks, 

delamination or other damage 
extends below the paint

 

• Edging is loose or damaged

Suspension (Pad/Liner)

 

• Cuts, tears or other damage to outer 

fabric or inner foam

 

• Exposed foam

 

• Pads that do not return to original 

shape when squeezed

 

• Worn hook/pile fasteners

 

• Pads are torn, cut, or 

otherwise damaged

 

• Foam is exposed

 

• Pads do not return to original shape 

when squeezed

 

• Hook/pile fasteners fail to hold pads 

in place

Retention (Chin Strap)

 

• Cuts, frays or other damage; or loose 

or damaged stitching in the webbing

 

• Missing, cracked, worn, or 

damaged Head-Loc buckle 
or Tri-Glide adjustment

 

• Loose or missing screw or T-nut

 

• Webbing is frayed more than  

½ inch or has a discernible cut; or 
stitching is loose or damaged

 

• Head-Loc buckle or Tri-Glide 

adjustment is missing, 
cracked, or worn.

 

• Screw or T-nut is loose or missing

Shroud, rails, or bungees 
(mission-configured helmets)

 

• Loose or missing hardware

 

• Hardware is loose or missing

CLEANING

Perform cleaning tasks for each component as described in the table below.

Component

Cleaning Procedure

Helmet Shell

Clean with mild soap and water; use a soft brush. Allow to dry.

Suspension (Pad/Liner)

Spot-clean with mild soap and water; use air pressure to remove dust and dirt. 
Pads may be machine-washed, but 

do not machine-dry; allow to air-dry.

Retention (Chin Strap)

Same as suspension (pad/liner)

Shroud, rails, or bungees 
(mission-configured helmets)

Wipe with damp cloth


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OPERATOR NOTES

14

OPERATOR 
NOTES


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15

OPERATOR NOTES

OPERATOR 
NOTES


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