LaserMax LMSG519 Guide Rod Red Laser (5mW, 635nM) for Glock 19/19 MOS/19x/45 Gen5 - Durable Aluminum Construction
- Firearm Make Fit:
- Glock
- Finish-Color:
- Black
- Firearm Fit:
- Glock 19 Gen5
- Dot Size:
- .75" @ 25 yds
- Mount Type:
- Guide Rod
- Battery Size:
- 393
- Weight:
- 76 oz
- Laser Color:
- Red
- Wavelength:
- 635nM
- Range:
- 20 yds
- Power:
- 5mW
- Power Switch:
- Ambidextrous On/Off
- Adjustments:
- No
The LaserMax LMSG519 Guide Rod Red Laser is a 5mW red laser sighting system engineered specifically for Glock 19 Gen5, Glock 19 MOS Gen5, Glock 19X, and Glock 45 pistols. Unlike holster-mounted or rail-mounted alternatives, this guide rod laser replaces your factory spring guide assembly with a precision-aligned laser that sits close to the bore for consistent point-of-aim/point-of-impact performance. If you shoot these Glocks for self-defense, competition, or training and want a sighting aid that won't interfere with your carry setup, this integrated design eliminates the bulk and complications of aftermarket add-ons.
Installation is straightforward—no gunsmithing required. The guide rod laser uses aircraft-grade aluminum construction to handle the demands of regular carry and duty use. You get user-selectable pulse or steady beam modes to suit your shooting style and lighting conditions, and an ambidextrous ON/OFF switch reinforces safe weapon handling regardless of how you draw or holster. An automatic 10-minute shutoff protects your battery from running dead during a long day at the range or in the field.
Because the laser is housed inside the frame as a guide rod replacement, it won't snag gear or catch on your holster. The proximity to the barrel and consistent internal geometry ensure that your laser stays zeroed with your mechanical sights, giving you a trusted reference point for fast target acquisition in low light or high-stress situations.
Key Features
- Integrated guide rod design—no rail or external mounting required
- Aircraft-grade aluminum construction for durability and reliability
- User-programmable pulse or steady beam operation
- Ambidextrous ON/OFF switch for safe, intuitive handling
- Automatic 10-minute shutoff prevents battery drain
- Close bore proximity ensures bore-aligned accuracy
- Does not interfere with standard holster or grip selection
Specifications
| Laser Type | Red Laser |
| Power Output | 5mW |
| Wavelength | 635nM |
| Compatible Models | Glock 19 Gen5, Glock 19 MOS Gen5, Glock 19X, Glock 45 |
| Material | Aircraft-Grade Aluminum |
| Beam Modes | Pulse or Steady |
| Switch | Ambidextrous ON/OFF |
| Auto Shutoff | 10 Minutes |
Frequently Asked Questions
Will this laser work with my standard Glock 19 Gen5 holster?
Yes. The guide rod laser is housed internally as a replacement for the factory spring guide assembly, so it doesn't add external bulk or protrusion. It won't interfere with any holster designed for your Glock 19 Gen5, 19 MOS Gen5, 19X, or 45.
Do I need a gunsmith to install this laser?
No. The LaserMax guide rod laser is user-installable without special tools or gunsmithing. It simply replaces your factory spring guide.
What happens to the laser beam after 10 minutes?
The laser automatically shuts off after 10 minutes of operation to conserve battery power. This prevents accidental battery drain if you forget to turn it off manually.
Can I switch between pulse and steady beam modes?
Yes. The LaserMax LMSG519 is user-programmable for both pulse and steady beam operation, so you can choose the mode that works best for your shooting situation.

