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The LaserMax LMSG423 is a clever alternative to rail-mounted lasers because it builds directly into your gun instead of hanging off the side. This means your Glock 23 Gen4 stays the same size, works with all your existing holsters, and maintains perfect balance and handling. The laser sits as close to the bore as you can get without actually going inside the barrel, which is why the point-of-aim and point-of-impact relationship stays consistent across different distances.
If you can field-strip your Glock, you can install this. It's a straightforward swap where the laser assembly replaces the factory guide rod and spring assembly. No special tools needed. The whole unit is built from aircraft-grade aluminum with genuine Wolff springs, so it's engineered to handle the abuse that comes with regular shooting. The pulsating red beam is visible in most light conditions and helps you quickly confirm where your muzzle is pointed.
The ambidextrous on/off switch sits on the takedown lever itself, making it nearly impossible to accidentally activate while drawing from a holster. The laser comes factory-aligned for dead-center accuracy at 20 yards, and it never drifts out of zero, even after swapping batteries. That means you install it and you're done, with nothing to adjust. The unit meets military specification durability standards including drop tests, salt water immersion, and sustained fire across 20,000 rounds.
Battery life runs about an hour of continuous use, and the 5-year warranty covers any manufacturing defects you might encounter down the road.
Yes. Since the laser mounts internally as a guide rod replacement, it doesn't change the external dimensions of your pistol. You'll keep using the same holster without any issues, and the laser won't interfere with tactical lights or rail-mounted accessories you already own.
The LMSG423 comes from the factory pre-aligned for center-of-mass accuracy at 20 yards. Once you install it, you're done. It never needs zeroing and won't drift out of alignment even after you replace the batteries, so there's nothing for you to adjust.
Absolutely. If you can perform a field strip on your Glock 23, you can install this. You'll push down the spring with a provided tool, swap the old guide rod for the laser assembly, and reassemble. Most people get it done in a few minutes with the included instructions.
The toggle switch is designed into the takedown lever, which sits flush with the rest of the gun. Most modern holsters won't accidentally push it on and off during normal carry, though if you use a very loose or molded holster, you should confirm the switch stays secure before relying on it in the field.
| UPC | 798816542530 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | LMSG423 |
| Dot Size | 0.63" at 20 Yards |
| Mount Type | Guide Rod Assembly |
| Power | 5mW |
| Shipping Weight | 0.2625 |
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