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Running a red dot on your Glock MOS or milled slide means your factory irons vanish below the optic window. AmeriGlo's GL-193 fixes that. This 3XL tall set is built to co-witness with slide-mounted red dots, giving you a usable iron sight picture in the lower portion of your optic window and a ready-to-go backup the moment your dot decides to quit on you. The front sight carries a green tritium lamp wrapped in a white outline that grabs your eye quickly whether you're at the range in daylight or clearing a dark hallway.
Instead of the traditional three-dot layout, the rear uses AmeriGlo's i-Dot design with a single green tritium lamp centered below a squared notch. That vertical dot-over-dot alignment is faster to confirm in the dark since there's no guessing about which dots line up. In daylight the plain rear stays out of your way and lets your eye snap right to that bright front sight. Folks switching over from a 3-dot setup usually mention it takes a little range time to adjust, then they don't want to go back.
The GL-193 fits Gen 1 through Gen 5 Glocks, including MOS slides, and covers the vast majority of models. The front blade measures 0.365 inches tall and 0.125 inches wide, with the rear sitting at a 0.451 inch overall height and a 0.15 inch square notch. Both sights wear a case-hardened finish and the rear gives you a nice square ledge for one-handed slide manipulation off a belt or holster. Since co-witness height depends on your specific optic and mount, it's worth checking your dot's window-floor measurement before ordering so you land in the lower-third window you're after.
Pistol sights need a proper sight pusher for the rear dovetail, and the tight dovetail on these means they stay put once seated. If you're not set up for that at home, a gunsmith can knock the install out in a few minutes.
These 3XL tall sights are designed to give you a co-witness picture with slide-mounted red dots, typically showing up in the lower portion of the optic window. Where exactly the irons land depends on your specific optic and how it mounts, whether that's a direct MOS plate or a milled slide. Check your dot's window-floor height against the 0.365 inch front and 0.451 inch rear before ordering to confirm the co-witness you want.
The i-Dot rear uses a single green tritium lamp centered below the notch instead of two rear dots. That creates a dot-over-dot alignment that's quick and clear in low light, with no confusion about which dots to line up. Shooters coming from a 3-dot system usually need a little range time to adjust, then find it faster to pick up.
The GL-193 fits Gen 1 through Gen 5 Glocks, including MOS slides, and covers the great majority of standard models. It's not made for the slimline pistols like the 42, 43, and 48 variants, which use different dovetail dimensions. When in doubt, match your model to the fitment list before buying.
The rear sight is a drift-in dovetail that really needs a proper sight pusher to seat correctly, and the front uses a screw underneath the slide. The dovetail runs tight on these, which is good news for staying zeroed but tougher to install by hand. If you don't have the right tools, having a gunsmith set them and confirm your zero is the way to go.
| UPC | 644406912644 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | GL-193 |
| Shipping Weight | 0.7 |
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