Nightstick TWM-850XLS Weapon Mounted Light Review

Nightstick TWM-850XLS Weapon Mounted Light
Nightstick TWM-850XLS Weapon Mounted Light

U.S.A.-(Ammoland.com)- When things go bump in the night, you need two things. The first thing is a good gun. The second item that I would want is a good flashlight. I decided I wanted to test out a weapon mounted light that caught my attention at SHOT Show.

I stopped by the Nightstick booth to check out what they had to offer in terms of flashlights. Looking through the Nightstick catalog, I saw the TWM-850XLS weapon mounted light. It immediately jumped out at me. I wanted to try it.

Nightstick TWM-850XLS

The specs of the TWM-850XLS looked great, but what I really liked was the street price of the light. Weapon lights can get expensive for good performance, but this one had an inexpensive MSRP of $151 and a street price of around $114 at the time of this writing. I was intrigued to see if it could do everything Nightstick claimed it could do.

TWM-850XLS
TWM-850XLS

I have had other weapon mounted lights. My go-to light is the Streamlight TRL-1. I also had cheaper lights that broke off from the recoil of my guns. I was curious to see how this flashlight would hold up. Nightstick was kind enough to provide me a light to test out on my firearms.

When I got the TWM-850XLS, I noticed five little bags with numbers and letters written on them. Four of these bags contain cross rail inserts that matched different firearms. The fifth bag included an Allen key and four screws.

What these cross rails do is allow the operator to secure the light to the firearm to prevent the flashlight from coming off when firing the gun. I had a cheaper light that would always slide off the end of my Glock when I was at the range. I tightened it down so much that I broke the rails on the light. These cross rails are a welcome addition to keep the light in place.

What these cross rails do is allow the operator to secure the light to the firearm to prevent the flashlight from coming off when firing the gun.
What these cross rails do is allow the operator to secure the light to the firearm to prevent the flashlight from coming off when firing the gun.

Nightstick makes installing the cross rails for the TWM-850XLS weapon mounted light simple with a helpful guide on their website. It shows the user what size rails to use and where to attach them to the light. My Glock used one cross rail, and My HK VP9 used two cross rails. Both seemed to be held securely to the guns.

When I took the TWM-850XLS weapon mounted light to the range it was able to take the recoil of both guns with no movement at all to the light. Nightstick did an excellent job with the design of the cross rails. It really made a big difference in holding the light securely to my gun.

Nightstick made the TWM-850XLS out of Aircraft-grade 6061-T6 aluminum with a type III anodized finish. The housing is robust and can take a beating. The anodized finish also looks great and doesn't scratch easily.

The 850 in the Nightstick TWM-850XLS stands for the lumens of the weapon mounted light. The 850 lumens mean this light is very bright. From testing indoors, I can attest that it easily lights up all the rooms of my house. It also carries light very far outside. Nightstick rates the TWM-850XLS beam distance at 245 meters. With a 15,000-candela rating, this light is excellent for use both indoors and outdoors.

The 850 in the Nightstick TWM-850XLS stands for the lumens of the weapon mounted light.
The 850 in the Nightstick TWM-850XLS stands for the lumens of the weapon mounted light.

The TWM-850XLS weapon mounted light will uses Cree LEDs. Cree is the top company for LED technology. These LEDs will last over 50,000 hours. Two included CR-123 batteries power the LED lights. I left the flashlight on to see how long the batteries would last, and the batteries lasted 1 hour 50 minutes before it died.

The “S” in the name stands for strobe. The TWM-850XLS's strobe is very disorientating. Nightstick does offer the TWM-850XL weapon mounted light which is the same as the TWM-850XLS but without the strobe feature.

The Nightstick TWM-850XLS weapon mounted light has a momentary-on and constant-on setting for the light. Nightstick made the toggle switch of the TWM-850XLS weapon mounted light out of glass filled nylon which is the same material used in a lot of knife handles. It feels solid and is easy to toggle the light on and off with ease due to the design of the switch.

One of the unique features of the Nightstick TWM-850XLS toggle switch is the ambidextrous controls. With most weapon mounted lights to turn it on you hit up on one side and down on the other side. This type of design could lead to confusion of the shooter in a stressful environment.

One of the unique features of the Nightstick TWM-850XLS toggle switch is the ambidextrous controls.
One of the unique features of the Nightstick TWM-850XLS toggle switch is the ambidextrous controls.

The controls on the TWM-850XLS eliminates the confusion of controlling the light. Pushing the switch up on either side will activate the light's constant-on setting. Pushing either side down will activate the momentary-on setting of the light. I love this unique feature of the TWM-850XLS weapon mounted light.

The Nightstick TWM-850XLS weapon mounted light is also waterproof with a rating of IP-X7. This rating means that the light can be submerged in 2 meters of water. Nightstick sealed the battery compartment with a gasket to keep out water. The only real complaint that I have about the design of the TWM-850XLS weapon mounted light is that the battery compartment requires a screwdriver to open to replace the batteries.

When I was looking for a holster that would work with the TWM-850XLS, I couldn't find one that was listed as being compatible with this specific weapon mounted light. I decided to try the Rekkr Custom Kydex holsters I had that was designed to work with the Streamlight TRL-1 that I currently have mounted on my VP9, and I was pleased to find out that they worked with the Nightstick weapon mounted light without any issues.

The Nightstick TWM-850XLS is a robust weapon mounted light, that is very bright. It also has a drop rating of 2 meters which means this light can take some punishment. It is great for use inside and outside. Nightstick also has a lifetime warranty on all their flashlights.

Nightstick TWM-850XLS
Nightstick TWM-850XLS

You can find information on the TWM-850XLS weapon's mounted light here.


About John Crump

John is a NRA instructor and a constitutional activist. He is the former CEO of Veritas Firearms, LLC and is the co-host of The Patriot News Podcast which can be found at www.blogtalkradio.com/patriotnews. John has written extensively on the patriot movement including 3%'ers, Oath Keepers, and Militias. In addition to the Patriot movement, John has written about firearms, interviewed people of all walks of life, and on the Constitution. John lives in Northern Virginia with his wife and sons and is currently working on a book on the history of the patriot movement and can be followed on Twitter at @crumpyss, on Facebook at RealJohnCrump, or at www.crumpy.com.

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