Nightstick TCM550XLS 550 Lumen Compact Weapon Light for Glock with Strobe - Black Anodized Aluminum

The Nightstick TCM550XLS is a 550 lumen compact weapon light purpose-built for Glock pistols and modern tactical handguns. If you're setting up a defensive pistol, running a duty gun, or building a home-defense carbine with rail-mounted accessories, this is the kind of reliable, purpose-designed light that belongs on your platform. The TCM550XLS delivers 550 lumens of white light via a precision-engineered TIR lens that throws a sharp focused beam out to 136 meters—enough reach to identify threats at serious distance without wasting battery on spill. It's made from aircraft-grade 6061-T6 aluminum with a Type III hard anodized finish, which means it'll handle the recoil impulse and whatever field abuse you subject it to.

Ambidextrous operation is the rule here: rear-facing toggle switches on both sides let you run momentary or constant-on in your preferred hand, and there's a dedicated strobe mode for added versatility. The light ships pre-configured with a C1 insert for Glock pistols, and Bayco includes modular rail inserts so you can adapt it to other handgun platforms down the road. It's waterproof, impact resistant, and chemically resistant—core durability specs for anything you trust in the fight. One CR123 lithium battery is included in the box, along with spare Allen screws, an Allen wrench, and serialization for personal identification.

Whether you're a competitive shooter, a security professional, or a civilian working up a carry or home-defense setup, the TCM550XLS fills the tactical handgun light role without overengineering or unnecessary bulk. It's straightforward, rugged, and proven.

Key Features

• 550 lumen LED output with precision TIR lens for 136-meter throw
• Ambidextrous rear-facing toggle switches—operate momentary, constant-on, or strobe from either side
• Aircraft-grade 6061-T6 aluminum construction with Type III hard anodized finish
• Pre-configured for Glock pistols; modular inserts allow adaptation to other handgun platforms
• Waterproof, impact resistant, and chemically resistant design
• Includes CR123 lithium battery, spare Allen screws, wrench, and serialization

Specifications

Frequently Asked Questions

Is the Nightstick TCM550XLS compatible with pistols other than Glock?

The light ships pre-configured with a C1 insert for Glock pistols, but Bayco includes four modular rail inserts so you can adapt it to other handgun platforms that accept standard picatinny or similar rail mounts. You may need to verify insert compatibility with your specific platform.

What battery does this light use and how long does it last?

The TCM550XLS runs on one CR123 lithium battery, which is included in the box. Runtime will depend on the mode you're running (momentary, constant-on, or strobe) and usage patterns, but CR123 cells are standard in tactical lighting and widely available.

Does the TCM550XLS have a strobe mode?

Yes. The ambidextrous rear-facing toggle switches allow you to select momentary, constant-on, or strobe modes from either side of the light.

What's the difference between momentary and constant-on operation?

Momentary mode activates the light only while you're pressing the toggle switch; constant-on keeps the light on after you release. Both modes are available via the same switches—you simply choose which you need in the moment. Strobe is a third independent mode option.