Bayco Products, Inc. • 640 South Sanden Blvd. • Wylie, TX 75098 • 1-800-233-2155 • 1-469-326-9400 • www.nightstick.com
INS-X50G2-20
Bayco Products, Inc. • 640 South Sanden Blvd. • Wylie, TX 75098 • 1-800-233-2155 • 1-469-326-9400 • www.nightstick.com
INS-X50G2-20
Instruction Manual
TWM-350/850XL/850XLS
US PATENT 9,713,217 & 10,451,384
PACKAGE CONTENTS
y 1 - Weapon Mounted Light
y 2 - CR123A Lithium Batteries
y 3 - Inserts P1, P2, and P3 (P2 is pre-installed)
y 2 - Cross Rail Mounting Cap Head Screws (1 pre-
installed & 1 spare)
y 1 - Allen Wrench
WEAPON SAFETY
PLEASE BE SURE TO READ, UNDERSTAND AND FOLLOW
THESE SAFETY AND OPERATING INSTRUCTIONS WHEN
HANDLING A FIREARM OR THE NIGHTSTICK TWM WHEN
MOUNTED ON A FIREARM. FAILURE TO DO SO CAN BE
DANGEROUS AND COULD RESULT IN SERIOUS INJURY,
DAMAGE TO PROPERTY, OR DEATH.
Use of a rearm under any circumstance is inherently
dangerous. SERIOUS INJURY OR EVEN DEATH may
result without proper training in the safe handling of rearms.
Proper training should be obtained from an accredited
rearms safety program conducted by a qualied instructor.
Read, understand and follow all of the safety instructions
that came with your rearm before attaching your new TWM.
y Always assume every rearm is loaded and treat that
rearm as such.
y Never point a rearm at anything that you are not willing
to destroy.
y Never service your rearm or your TWM when mounted
on a rearm without rst activating the weapon’s safety (if
applicable), removing the magazine, opening the action
and physically and visually inspecting to make sure that no
ammunition is installed in the rearm.
WEAPON MOUNTED LIGHT SAFETY
y Nightstick recommends that the TWM should only be
activated with the non-trigger hand (support hand) while
employing a two-hand grip on the rearm and with the
trigger nger fully outside the trigger guard when applicable.
WARNING: FAILURE TO DO SO COULD RESULT IN
AN ACCIDENTAL DISCHARGE AND SERIOUS INJURY,
DAMAGE TO PROPERTY, OR DEATH.
y Thoroughly practice (employing safe training conditions) with
the TWM and an unloaded rearm before using the weapon.
BEFORE ATTACHING, INSPECTING OR
SERVICING THE TWM
y Engage the safety on the rearm (if applicable).
y Remove the magazine from the rearm (if applicable).
y Open the action and visually and physically inspect the
chamber to be sure it is empty.
y Keep the barrel pointed in a safe direction at all times and
never place your hand in front of the muzzle.
WARNING: IT IS IMPERATIVE THAT SAFETY
MEASURES BE EMPLOYED AT ALL TIMES WHILE
HANDLING A FIREARM.
GENERAL SAFETY WARNINGS
y NOT FOR USE ABOVE HAZARDOUS LOCATIONS
y DO NOT use in explosive atmospheres, near ammable
liquids, or where explosion proof lamps are required.
y DO NOT use in the proximity of vehicles or equipment
when there is a risk of ammable liquids coming into
contact with the ashlight.
y DO NOT expose the batteries to water or salt water, or
allow the batteries to get wet.
y DO NOT store the batteries with metallic objects that
may cause a short circuit.
y Immediately discontinue use of the batteries if they emit
an unusual smell, feel hot, change color, change shape or
appear abnormal in any way.
y Keep out of the reach of children.
STEP 1. INSTALL THE BATTERIES
Image 1 Image 2 Image 3
y To install the included CR123A Lithium Batteries in
the TWM, begin by unscrewing the screw on the battery
compartment door. (Image 1) This screw is designed to
remain in the battery compartment door once it has been
unscrewed, do not attempt to remove it.
y Insert both batteries into the battery compartment paying
attention to the battery orientation marking on the sides of the
light near the battery compartment door. (Image 2)
y Re-install the battery compartment screw by pressing the
door fully closed and then tightening the screw until it is
hand tight. Do not over tighten. (Image 3)
y Test the operation of the light (see OPERATION below).
STEP 2. INSTALL THE LIGHT ONTO FIREARM
The TWM is designed to be easily attached and
detached from the rearm’s tactical rail. The rearm must
have a tactical rail and it must have at least one cross rail
slot. The TWM is not designed to be used on a rearm that
does not have a cross rail slot.
IMPORTANT: The TWM comes pre-congured with the
P2 Modular Channel-locking insert that ts Glocks and
most handgun models. If the t is not correct for your
specic handgun, use the Allen wrench to switch to the
P1 or P3 insert that works best for your rearm.
Refer to the TWM-Series Modular Insert Reference Guide
for a list of handgun models and inserts.
Image 4 Image 5 Image 6
y Push inward on the head of the rail clamp tension
thumbscrew to open the adjustable portion of the rail clamp.
(Image 4)
y While making sure your rearm is in a safe condition and
the barrel is pointed in a safe direction, place the xed portion
of the rail clamp into the groove of the tactical rail on your
rearm and align the insert tab with the slot on your rearm.
y Rotate the light onto the tactical rail (Image 5). Release the
pressure on the tension thumbscrew making sure that the light
is gripping both sides of the tactical rail of the rearm. Verify that
the insert tab is fully seated into the rail slot. (Image 6)
Image 7 Image 8
y While holding the light tightly to the tactical rail of the rearm,
tighten the rail clamp tension thumbscrew by hand. (Image 7)
y Use a large coin (a quarter works well) to fully tighten the
tension thumbscrew. (Image 8)
WARNING: NIGHTSTICK STRONGLY RECOMMENDS
PERIODICALLY CHECKING TO INSURE THAT THE ALLEN
SCREW AND THE RAIL CLAMP TENSION THUMBSCREW
REMAIN TIGHT. FAILURE TO KEEP THESE TIGHT CAN
RESULT IN DAMAGE TO THE TWM AND/OR THE CROSS
RAIL INSERTS UNDER CONTINUOUS RECOIL.
SCAN FOR MOUNTING
INSTRUCTION VIDEO
https://youtu.be/mI0GE_qKFi8
STEP 3: TEST FUNCTION OF THE SWITCHES
y Verify that both switches have a full range of movement
and that the TWM is operating properly.
y The TWM is now properly installed on your rearm.
OPERATION
Left Down-Momentary On Right Down-Momentary On Neutral Off
Left Up-Constant On Right Up-Constant On Neutral Off
y The TWM uses Dual Dependent Locking Switches.
y Each switch has 3 positions of operation: Neutral
- Off, Down - Momentary-on and/or Strobe (model
dependent),Up - Constant-on
y In order to operate one of the switches, the switch on the
opposite side must be in the Neutral Position (off).
MOMENTARY-ON MODE
Press down and hold either the left side switch or the right
side switch to activate the momentary-on mode. Release the
switch, back to the Neutral position and the light turns off.
NOTE: While in Momentary-on Mode on one side of the
TWM, the Dual Dependent Locking Switch design of the TWM
prevents the switch that is NOT in use from accidentally moving
out of the Neutral position. This eliminates the possibility of an
unintended activation of the light (i.e. while the left side switch
is being held in the Momentary-on Mode, the right side switch
is mechanically locked in the Neutral position).
CONSTANT-ON MODE
Press up, click and release either the left side switch or
the right side switch to activate the constant-on mode. From
the constant-on mode slightly press the switch downward into
the Neutral position to turn the light off.
STROBE MODE (350S/850XLS Models Only)
To activate (using either switch), quickly press down
twice and hold on the second press. This will activate the
strobe. The strobe mode will continue until the switch is
released back to the Neutral position.
STROBE WARNING
Exposure to strobing lights may cause dizziness,
disorientation, and nausea. A very small percentage of people
suffer from photosensitive epilepsy and may experience
seizures or blackouts triggered by strobing lights. For more
information from the EPILEPSY FOUNDATION about
photosensitivity and seizures, please visit www.epilepsy.
com. Anyone who has had symptoms linked to this condition
should consult a doctor before using this product.
WARRANTY
LIMITED LIFETIME WARRANTY
Bayco Products, Inc. warrants this product to be free
from defects in workmanship and materials for the original
purchaser’s lifetime. The Limited Lifetime Warranty includes
the LEDs, housing and lenses. Rechargeable batteries,
chargers, switches, electronics and included accessories are
warranted for a period of two years with proof of purchase.
Normal wear and failures which are caused by accidents,
misuse, abuse, faulty installation and lightning damage are
excluded.
We will repair or replace this product should we determine
it to be defective. This is the only warranty, expressed or
implied, including any warranty of merchantability or tness
for a particular purpose.
For a complete copy of the warranty, go to www.
baycoproducts.com/nightstick-product-support/warranties.
Retain your receipt for proof of purchase.
