Gentex Active Shooter User manual

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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INTRODUCTION
COMPONENTS
SIZING GUIDE
LINER SETUP
CHINSTRAP OPERATION
FACE SHIEL OPERATION
FACE SHIELD INSTALLATION
ARC OPERATION
MAINTENANCE
OPERATOR NOTES
TABLE OF CONTENTS

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, precongured with the
Ops-Core®Multi-Hit Handgun Face Shield, and ideal for law enforcement rst 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)
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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
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COMPONENTS

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.
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TOOLS/EQUIPMENT NEEDED: Caliper, Ruler, and Tape measure
1MEASURE 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.
2MEASURE 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

Tape measure
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3MEASURE 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.
4SELECT 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 6½ 21¼ to 22½
Large (L) 7¾ to 8¼ 6½ 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.

LINER SETUP
Ensure the helmet is properly adjusted for a snug, secure t 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
1PLACE 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 t. Ensure that the front pad is just above the eyebrows. If necessary, adjust the t 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 t.
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 t.
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

Ensure the helmet is properly adjusted for a snug, secure t 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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CHINSTRAP OPERATION
WARNING
1LOOSEN HEAD-LOC SLIDERS
Loosen all (4) Head-Loc Sliders by sliding them away from the chin cup.
2CONNECT CHINSTRAP BUCKLE
Place the helmet on your head and connect the low prole chinstrap
buckle. This is easiest when placing your index ngers behind each
side of the buckle as shown.
3TIGHTEN
FRONT SRAPS
Tighten the front straps by
pulling the Head-Loc Sliders
toward your chin.
4ADJUST
NAPE PAD
Position comfortably (as low as
possible) on the back of your
head. Pull Head-Loc Slider with
your right hand.
5TIGHTEN SIDE
STRAPS
Tighten the side straps by
pulling the Head-Loc Sliders
toward your chin.

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.
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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.
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Accessory Rail Connector (ARC) Shoe
T-Lock

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 dofng
of accessories and clean routing of external wires and cables in a streamlined conguration to minimize
user distraction.
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Slide Picatinny Adapter to
preferred position on the
ACH-ARC.
1Tighten screw to lock
the adapter into place.
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PICATINNY ADAPTER
ACH-ARC ASSEMBLY
Connects devices compatible
with 1911 Picatinny Rail
Attach desired accessory
to Wing-Loc Adapter
using the through-holes.
1Pinch 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-congured 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-congured helmets)
Wipe with damp cloth

OPERATOR NOTES
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OPERATOR
NOTES

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OPERATOR NOTES
OPERATOR
NOTES