Malkoff MDX22.3-M91B Head

High/Low Switch

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This is the Malkoff Devices M91B preloaded in a MDX22.3 Head.  The output is 1000 Measured Out the Front Lumens.  The switch is a forward clicky with momentary function. 

If the optional H/L Switch is installed (see Options above), the High/Low is controlled by head rotation.  The low output is approximately 30 lumens with three CR123A Batteries installed.  The On/Off switch is a forward clicky with momentary function. 

SAVE 9%!

Compared to purchasing components separately.

The output is approximately 1100 measured out the front lumens at turn on and 1000 continuous.  The Lux is approximately 8500 at one meter.  The current draw is approximately 1400ma at 9 volts. The full output runtime is approximately 30-45 minutes on three CR123 primary batteries with a nice long taper as voltage drops. It will easily illuminate objects at 200+ feet and will blind opponents within a 100 foot radius. The LED is a Cool White (6200K) Cree XP-L. 

This design utilizes a custom orange peel reflector designed by Don McLeish.  The reflector offers a very nice balance between throw and spill.  It is an outstanding room lighter and short to medium spotter. It was designed specifically for use in the Malkoff MDX-16.5 Head with the Malkoff MD3 and MD4 Bodies. The input voltage is 5.5 - 12 volts. Below 5.5 volts it will drop out of regulation.  This dropin is protected against reverse polarity.

This Malkoff Upgrade is designed for rugged service from the ground up.  It is fully potted to stand up to rough service and recoil.  This item is covered by Our Lifetime Warranty.

Full specifications for the M91B can be found HERE.

Made in the USA. Some parts not domestically sourced.

WARNING: This light is capable of causing eye damage at close range. Please use the light responsibly!!!


SureFire, LLC, which manufactures and sells Surefire® flashlights is not associated in any way form or fashion to Malkoff Devices. SureFire, LLC, does not manufacture, sponsor, warrant, or endorse any Malkoff Devices product advertised on this website. The use of the Surefire® trademark, a registered trademark of SureFire, LLC, is strictly for the purpose of identifying the host flashlight for the Malkoff Devices products advertised on this website. All other trademarks, copyrights, and graphics or text not owned by Malkoff Devices 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 Malkoff Devices.