Mk4 Battle Light

Weapon-Mounted White Light LED

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The modular design of the 500 lumen Mk4 weapon light provides interchangeable switch options to meet a wide variety of battlefield needs. The low-profile design places the light close to the weapon body nearly eliminating the rifle barrel shadow and enhancing weapon handling switchology. The Mk4 can operate on two CR 123A batteries or one rechargeable Li-Ion battery (sold separately).

  • Weight 4.9 oz.
  • Submersible to 5 meters
  • Item No. 9072



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Product Features: 

Push-button or Remote Cable Pressure Pad Activation
Momentary / Constant On
Includes Low-Profile Thumb Screw Mount and Pressure Pad
White Light LED
Powered by: Two CR 123A Batteries
Remote Cable Port


Item No.TypePowerSpecial FeatureLamp
9072White Light500 LumensDual purpose tailcap and remote pressure pad White Light LED
Special FeatureDual purpose tailcap and remote pressure pad
LampWhite Light LED
Beam Divergence10°
*Range300 m
BatteryCR 123A
Battery Life (mode dependent)≥1.25 Hours
Reflection LensTotal Internal Reflection Lens
Warranty2 Year
MaterialAircraft Aluminum
Weight (with battery and mount)4.9 oz.
Dimensions6.04 (L)
Temperature Range-40° to +65°
WaterproofSubmersible to 5 m
MountMIL-STD-1913/Picatinny rail
Activation SwitchIntegrated Push Button
Remote Cable Pressure PadOptional
Special FeaturesComes with 1913 mount, Optional Y-cable connects Mk4 to DBAL-A3 Laser

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Is there a different pressure switch I can use with the mk4 

Asked by: Adam75
Yes any Steiner pressure switch will work with the battle lights.
Answered by: Steiner Tech Support
Date published: 2018-10-10

I have a Mk4 Battle Light with the tailcap that has a push button and connection port for a remote switch. Since I usually don't use a remote switch, I was wondering if there is a little plug sold to keep debris out of the remote switch port. Thank you.

Asked by: 65k10
We do not have a plug for that.
Answered by: TeamSteiner
Date published: 2017-03-12

Hey,  When/if the LED(s) die can you seperately replace them? And if so can you direct me to where I can get replacement LEDs.  Regards LCPL R.Soested Danish Army Electronic Element 

Asked by: Rune
The battle light has a 3 year warranty that will cover LED malfunction.
Answered by: SteinerCustomerService
Date published: 2016-12-13

I lost the remote pressure pad for my MK4 Battle Light. Can I purchase just the pressure pad?

Asked by: Ranger173
#9120 is the remote cable with right-angle connector #9121 is the remote cable with straight connector
Answered by: SteinerOptics3
Date published: 2018-05-23

Can the mk4 pressure switch be mounted to a 1913 picatinny rail I've had bad luck with hook&loop two sided tape and zip ties I like to keep my wires clean and snag free

Asked by: snowman49017
The MK4 pressure switch is a stick on hook and loop pressure switch. We do not offer a hard mount for the pressure switch onto a rail.
Answered by: Steiner eOptics 1
Date published: 2017-12-28

Is there only 500 lumens or is there a low/high setting? Apprx runtime? Thanks in advance.

Asked by: Joejoe
Hello, There is not a high/low setting. Battery life is approx 1.25hrs.
Answered by: Steiner Tech Support
Date published: 2018-09-10

Does the Mk4 come with both tailcap types pictured?

Asked by: Gray
The MK4 comes standard with the pressure switch tail cap and a pressure switch.
Answered by: Steiner eOptics 1
Date published: 2017-05-03

I want to purchase a Unity TAPS to use with the CQBL-1 and the MK4 Battle Light. The switch has two optional plugs; Insight/Insight or Surefire/Insight. Will either of these work with the CQBL-1 and the MK4 Battle Light? If so, which?

Asked by: Litigator
Hello! I apologize for the delay. I have confirmed that you can indeed use the TAPS switch. You will need a connector that is Insight/Insight.
Answered by: Steiner Tech Support
Date published: 2018-10-10
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