Triple Surefire X300u v5 Upgrade Service

Triple Surefire X300u v5 Upgrade Service

Product Information

Triple Surefire X300u v5 Upgrade Service

Make your super compact weapon light the best in the business by upgrading it with our custom v5 microprocessor controlled 3500 lumen XPL LED driver board.




Your light works as hard as you do and tends to get covered in carbon and lead. Every X300U under service goes through our three point cleaning process. Including labratory grade ultrasonic bath of loose parts. So your light returns looking as good as it works.


Use Adaptations:

  • Customize Behavior - Fully User re-Programmable after delivery
  • Faster Subject Recognition with neutral tint
  • Reduce your sweep arc with ultra bright floody beam
  • Clear Buildings and Yards safer and in less time
  • Fill Shadows in full daylight with up to 3500L
  • Control light color at dawn & dusk for easy identification
  • No PWM - sound and flicker free operation at all power levels
  • Test cell voltage right on your weapon with 111 PIN


Power Adaptations:

  • Input voltage range from 2.5v to 8.8v (1-2 cells)
  • Reversed battery polarity protection
  • Under and over voltage protection (2.5/8.8v)
  • Run with one cell + spacer for second mode group

Design Adaptations:

  • Adaptive temperature control (reduces output only 1/33rd as needed)
  • Integrated thermal safety protection at 65C (149F)
  • Fully qualified between -40 and 248F (-40 and 120C)
  • Integrated thermal overheating protection at 120C (248F)
  • Shock proof materials, components, and design


Forum Reviews:

CPF, March 2011 (XPG version)



This is an upgrade service to your existing light and does not include the base light

This service supports the Surefire x300u, x300u-A, x300u-B and y300u

This service does not support the the Surefire x200 or x300 or x400

See our category menu for x300, Scout, and 95/96 options

This service is from/to USA addresses only

Hidden 2nd Mode (optional)

The standard rule with weaponlights is single mode only. This ensures maximum output is always available. But its based on two historical limitations:  1) that the light has only one level that is bright enough for primary uses and that  2) the second mode is only two clicks from start, to easy to activate when you don't mean to. v5 erases both these limitations, giving you more control and flexibility.

Choose to add a second hidden mode and enjoy both overwhelming light from start and extended run time when you need it. Three or four brief presses/clicks from start (two or three presses from mode one) and you've got your second mode. Reset to mode one anytime but turning off for more than 2 seconds. And like everything V5, this can be reconfigured after delivery.


    1) chose options below, add this page to cart, and complete checkout
    2) wait for secure shipping tube with packaging and postage to arrive

3) remove both brass plugs from one end of shipping tube
4) remove cap from this end and place all 3 parts aside
    5) remove the green shipping label (you to TL) and foam from the tube

    6) remove and hold extra items you may have ordered (batteries etc)

7) open the slot, do not cut or remove tape from foam tube
8) place your x300u inside the foam and then foam inside the tube
    9) include
: receipt (or configuration preference) and red postage label
    10) replace the end cap and affix the green shipping label on the outside
    11) insert both brass plugs through the same holes and spread apart
          if holes don't line up, rotate white cap 180 degrees

    12) drop the newly sealed/addressed tube into the mail (usps locations)
    13) wait for your updated x300u to arrive back in the mail
    14) note the 3 tracking numbers for each leg of the trip,

          OVEREADY to you, you to TorchLAB, TorchLAB to you.

For multipe lights, add each to your cart and return here for the next


Operational Warnings:

Do not leave unattended while runnin

Do not attempt to unscrew head

Keep cells in matched pairs (A1+A2 used together, B1+B2 used together, etc)

2016 (15c) IMR16340 cells are recommended at all times


Battery Notes:

Do not use CR123 above 1000L

Do not use normal IMR above 2000L

Only use cells rated above 6 amps for full power

2016 AW IMR 16340 only for 3500L (15c = 8 amps)

For Longevity, recharge soon after draining

All runtimes based on 2016 16340 (15c = 8 amps)

Runtimes are worst case, actual times will be longer

Stretch mode on and recommended for end of runtime taper


Light/Heat Precautions:

Light will get hot if run continously

Continuous output depends on ambient temperature and airflow

This light creates excessive heat.

This light may cause eye damage

This light may burn skin at close range.

This light may cause combustibles to ignite

This light is not a toy, keep away from children



This service performed in and includes parts from


Product Options:

1st Mode
2nd Mode (hidden)
Included Batteries
Body Serial Number

Product Code: 3x300u


Copyright 2010-2017 by OVEREADY, Inc.

SureFire(R) is a Registered Trademark of SureFire, LLC. The use of the Surefire(R) trademark, a registered
trademark of SureFire, LLC, is strictly for the purpose of identifying the host flashlight advertised
on this website. SureFire, LLC, which manufactures and sells Surefire(R) flashlights is not associated
in any way, form or fashion with OVEREADY, Inc. SureFire, LLC, does not sponsor, warrant, or endorse
any modified or customized products advertised on this website. Modifications and upgrades made by
OVEREADY, Inc. may void some or all of the SureFire(R) original manufacturers warranties.

All other trademarks, copyrights, and graphics or text not owned by OVEREADY, Inc. or any of its related
companies that appear on this site are the property of their respective owners, who may or may not be
affiliated with, connected to, or sponsored by OVEREADY, Inc.