Top positive review
11 people found this helpful
The benefits far outweigh any problems
on November 23, 2013
I have installed two of these guide rod laser sights: Glock 19 (April 2013) and Glock 30S (September 2013). I have fired ca 400-500 rounds through the G19, 100-150 through the G30S and had no FTEs with either gun. My accuracy has improved enormously. I am a septuagenarian (seventy+) and have dealt with presbyopia (Greek for "old man's eyesight") for years, so any gun-mounted sights on a pistol, even night sights, are somewhat of a challenge.
Some folks have complained of FTEs with the Model# LMS-1131P (on the G19). I suspect the issue is a limp-wrist grip: the LaserMax recoil spring supplied with the LMS-1131P is in fact stiffer than the G19 factory original, so something less than a firm two-hand grip could conceivably prevent decisive slide retraction. The stiffer spring also makes the gun a little more difficult to rack. This doesn't apply to the Model# LMS 1191 (G30S) which comes with a double recoil spring similar to the factory original that makes it easier to rack.
Another issue with the Model# LMS-1131P (on the G19) is that the supplied slide lock spring is quite a bit stiffer than the factory original, making takedown more difficult. (The spring is proprietary as it has a depression to accept the two knobs on the slide lock to hold the switch in place, on or off.) I devised a tool to depress the slide lock to takedown position but found out I could do as well by putting on a work glove with thumb-and-fingertip pads on my left hand. (I measured the thickness of the factory-original and LaserMax-supplied springs and found them to be .014" and .018" respectively, which would explain the stiffness difference.)
For some time I found the slide-lock-bar-as-switch concept to be a little problematic: the switch seemed to be awkwardly positioned for (right) trigger-finger activation, and I found it stiff and hard to activate, requiring my trigger-fingernail. Problem easily solved: My two-hand grip puts my thumb directly over the switch on the left side allowing intuitive activation; in addition, I discovered that the stiffness of the switch is quite a bit less after the slide is racked, eliminating the need for fingernail involvement.
Add to this that I can continue to use a rail-mounted strobe or my Gould & Goodrich shoulder holster-of-choice. I am overall very pleased with these guide rod lasers.