Handgun laser sights can improve targeting and confidence, especially in low light. The Glock 19 includes an accessory rail, though many laser units (including ArmaLaser’s TR22) clamp around the trigger guard rather than attaching to the rail, while the subcompact G43 relies on a trigger-guard-mounted solution.

Keep reading as we cover how to pick a laser for each pistol and explore activation methods, laser color choices, and installation. We also examine how ArmaLaser compares to other brands and why training with a laser matters.

Key Features to Consider in Laser Sights

Activation Methods

There are three options for turning on the laser, which vary by device:

• Touch/Grip Activation: Engages the laser when the pistol is held. Activation is immediate, instinctive, and requires zero extra effort.
• Button Activation: A manual on/off switch you engage with a thumb or finger. Offers deliberate control with a slight delay under stress.
• Pressure Pad Activation: A pressure pad on the frame or a modified grip engages the laser. Engagement is immediate, but added bulk can affect feel and holster compatibility.

Red vs. Green Laser Technology

Visibility, power consumption, and cost are impacted by the laser’s wavelength.

• Red Lasers (635–650 nm): Ideal general-purpose choice. Work well indoors and in low light, use less power, cost less, and remain durable in extreme conditions.
• Green Lasers (~520 nm): Perceived ~5× brighter to the human eye, especially effective in daylight. They draw more power and cost more, making them great for outdoor range work or daytime carry.

For a deeper dive, see Red vs. Green Laser Sights: Which Color Is Best for Your Handgun?

ArmaLaser Solutions for Glock Platforms

ArmaLaser avoids one-size-fits-all designs in favor of model-specific laser sights that match the lines and tolerances of each pistol.

TR22 Series for Glock 19

The ArmaLaser TR22 is a trigger-guard-mounted unit for Glock pistols with accessory rails. It clamps securely around the trigger guard while clearing the rail area, providing a low-profile fit without using the rail.

• Models Available: TR22S (red) and TR22GS (green)
• Activation: GripTouch sensor under the trigger guard engages automatically when gripped; placement avoids interfering with technique
• Specs: Half-inch beam diameter visible at 50 ft; steady and pulsing modes
• Battery Life: ~5 hours active use (red)
• Design: DuPont Zytel housing complements Glock frame material
• Other Details: Master on/off for storage or practice; installs in minutes without gunsmithing; 5-year warranty
• Pricing: $98.75 (TR22S); $148.75 (TR22GS)

TR5 Series for Glock 43

Because many Glock 42/43-family pistols lack an accessory rail, the TR5 clamps around the trigger guard to preserve concealability and provide reliable GripTouch activation.

• Models Available: TR5 (red) and TR5G (green)
• Activation: GripTouch sensor engages naturally with a proper grip; does not hinder concealment or grip technique
• Specs: Half-inch beam diameter visible at 50 ft; steady and pulsing modes
• Battery Life: ~6 hours active use (red)
• Design: Lightweight polymer housing maintains the G43’s slim profile and balance
• Other Details: Battery door allows swaps without losing zero; master on/off for storage or dry-fire; tool-free install in minutes; 5-year warranty
• Pricing: $98.75 (TR5); $148.75 (TR5G)

GTOS / FLX20 Series for Glock 19 (Rail-Mounted)

ArmaLaser’s GTOS / FLX20 line uses the Glock 19 dust-cover accessory rail for a tight, low-profile fit.

• Models Available: GTOS20 / FLX20G (red or green)
• Activation: Rail-mounted activation with FLX touch strip or an integrated GripTouch-style sensor; designed to engage naturally without disrupting grip
• Specs: Half-inch beam diameter visible at 50 ft; steady and pulsing modes
• Battery Life: ~5 hours (red); green runs shorter due to higher power draw
• Design: Low-profile aluminum housing mounts to the rail and hugs the frame to preserve concealment and holster fit
• Other Details: Quick-attach rail clamp (or screw clamp) for tool-free install/removal; master on/off; 5-year warranty
• Pricing: $98.75 (GTOS20/FLX20G red); $148.75 (GTOS20/FLX20G green)

Competitive Analysis

• Crimson Trace: Laserguard and Lasergrips with instinctive activation. Broad pistol coverage but typically higher price points. Price range: $190–$400.
• Streamlight TLR-6: Designed for Glock 42/43 frames with integrated light + laser. Dual purpose is appealing, but added bulk and button activation may not suit every concealed carrier. Price range: $125–$195.
• LaserMax Guide Rod Systems: Replaces the recoil spring assembly with a guide-rod laser to keep the exterior unchanged. More technical install; activation is less intuitive for some users. Price range: $290–$370.

ArmaLaser—Installation and Practical Considerations

Mounting

The TR22 and TR5 clamp around the trigger guard with precision fittings and typically install in minutes without specialized skills. TR22 is shaped to clear Glocks with a dust-cover rail, while TR5 fits slim, non-rail pistols like the G43 family.

The GTOS/FLX20 series attaches directly to the accessory rail and sits lower to the frame, which can preserve concealment when a rail mount is preferred.

Zeroing

All ArmaLaser units ship factory-zeroed to a standard distance (commonly ~50 ft) and include simple windage/elevation adjustments. After installation, verify zero at your intended training or carry distance.

Training and Applications

Dry-Fire Practice

Use the master on/off to disable the dot during dry-fire to save battery life. For instant visual feedback, activate the laser to diagnose muzzle movement, anticipation, flinch, and trigger pull—speeding up corrections versus relying only on paper targets.

Low-Light Use

Lasers excel where irons fade. In the dark, a laser instantly confirms point of aim. Green is easier to see in daylight; red is efficient indoors or after dark and sips battery.

Retention & Unconventional Positions

When a full sight picture is hard to obtain—behind cover, on the ground, or in retention—a laser is invaluable. Train these scenarios with your holster to build predictable draws under stress.

ArmaLaser: Custom-Fit Laser Solutions for Your Glock 19 and Glock 43

Whether you carry a G19 or G43, ArmaLaser offers precision-engineered laser sights designed for your exact model. ArmaLaser also supports dozens of other popular pistols. Explore options at the ArmaLaser store and read the ArmaLaser Blog for more in-depth guidance.

Disclaimer

DISCLAIMER: This article is for educational purposes only and is based on correct firearm handling and lawful use. This information is not a substitute for proper training.