Tag Archives | Bayco Products

Review: Nightstick TCM-550XL Weapon Light

The Nightstick TCM-550XL is relatively new to the weapon light market but it is from a maker that has been making first responder lights for a long time. Let’s dive right into the review to see how it stacks up.


The TCM-550XL is a compact weapon light from Nightstick, a division of Bayco Products. It is about 2.5″ long, just over 1″ wide, and just over 1″ tall – a size that allows it to sit well inside the footprint of a typical double stack handgun like a Glock.

It boasts 550 lumen output and uses a collimating lens to produce a beam with a relatively wide hotspot. The runtime for this single CR123A light is published as 2.5 hours.

The main body of the TCM-550XL is machined from 6061 aluminum with a polymer back plate. It weighs in at 2.5 ounces. Other highlights include a paddle style switch and lock out bezel.

Observations from Use

I typically shy away from direct product comparisons in these reviews but in this case it feels unavoidable. The TCM-550XL is similar in size, shape, and execution of at least two features (the lockout bezel and rail clamp) to the Streamlight TLR-7. However, I feel that the TCM-550XL actually has a major advantage over the TLR-7 in that its paddle style switch is MUCH easier to operate and it is brighter with better tint than my TLR-7.

Speaking of the switch, it offers constant/momentary operation. The user interface should feel familiar as it has become somewhat standard across many tactical lights – quick press for constant, long press for momentary. This is a system that works fairly well with just a bit of practice.

This brings us to my first criticism of this light. It turns on instantly but there is a delay in turning off, almost as if the light is deciding whether it should stay on or turn off based on your input. It is just a moment (not even a second) but it is noticeable when running drills. Apart from that delay, the switch is actually very impressive. This is a very compact light but the well designed switch operates as easily as a full size light.

The lockout bezel works well though the detent that indicates the light is locked out can be a little difficult to feel on my example. It is still a thoughtful feature and there are markings on the bezel to indicate where the lockout exists.

The beam profile is very good. It has a wide hotspot with plenty of spill. The TCM-550XL balances throw and spill very well for a compact light. Those 550 lumens do a good job is filling a room with light or extending the range at which you can ID a target outdoors.

I am very impressed with this light. It has standout ergonomics among compact lights, a compact footprint, and good output for a single CR123A light. It has a lot of potential but it shares the same stumbling block to that potential as any new weapon light – lack of holster support. This light has what it takes to be a great CCW light but as of right now, it will be hard to find a holster for it. Safariland has this light listed in their holster finder but all of the compatible holsters are more suited for duty carry, not CCW.

Wrap Up

The TCM-550XL has the size, weight, output, and ergonomics that I look for in compact weapon light. The switch in particular stands out among a lot of compact weapon lights. It ticks all the boxes but until there is holster support, it will be hard for it to reach its full potential.


Powered by WordPress. Designed by Woo Themes