LaserMax LMSG419 Red Guide Rod Laser for Glock 19 Gen 4 - Black

The LaserMax LMSG419 is an internal red guide rod laser sight purpose-built for the Glock 19 Gen 4 pistol. It replaces the factory recoil spring guide assembly and installs directly inside the slide, leaving the exterior profile of the host pistol unchanged while adding a 635nm red laser that aligns with the bore for fast, intuitive aiming.

At the heart of the unit is a 5mW visible red emitter producing a 0.63" dot at 20 yards and an effective range of up to 50 meters. An ambidextrous on/off switch at the rear of the slide operates the unit, equally usable by right- and left-handed shooters. The guide rod is powered by a common 393 battery, the same button cell widely sold at watch and electronics retailers.

Weighing only 0.55 oz, the laser adds essentially nothing to the pistol's heft or balance. The black finish blends with the factory Glock slide internals for a discreet install, and because everything sits inside the slide there is no need for external mounts, rail space, or modified holsters.

Designed exclusively for the Glock 19 Gen 4, the LMSG419 is not compatible with Gen 3, Gen 5, or other Glock variants. No permanent modifications are required, and the unit is intended to enhance accuracy for defensive, training, duty, and recreational shooting applications.