Description
The AmeriGlo Defoor set swaps out those soft factory polymer sights on your Glock 42 or 43 for a rugged pair of all-black steel sights that were designed hand-in-hand with decorated combat veteran and competition shooter Kyle Defoor. The whole idea here is simplicity: a serrated front blade and a smooth, flat rear notch, no dots or distractions to clutter up the sight picture. That blacked-out setup is a favorite among folks who spend real time behind the gun and want to focus purely on the front sight.
What Makes the Defoor Sight Layout Work
The magic is in the proportions. You get a .115 inch front blade paired with a wider rear notch, a ratio popularized by top competition shooters that leaves plenty of daylight on either side of the front sight. That extra light means your eye finds the front post faster and follow-up shots come quicker, which is exactly what people notice when they move off the tight factory Glock sights. The set is also tuned for true point-of-aim, point-of-impact at 25 yards, so your holds line up the way they should out at distance.
Built From Steel, Finished to Cut Glare
These are machined from alloy steel and given a flat-black nitride finish, so they stand up to wear and corrosion far better than the stock plastic sights. The serrated front face and matte rear both knock down reflections in bright light, keeping the picture clean whether you're on an indoor range or out in the sun. The 90-degree edges on the rear also give you a hard surface to hook on a belt or holster for one-handed slide manipulation in a pinch.
Fitment and Setup for Your Glock
This GT-532 set fits the Glock 42, 43, 43X, and 48. Installation is a straightforward dovetail swap, and a sight pusher tool makes quick work of it and lets you dial in your windage. If you run a red dot, keep in mind these are standard height and won't co-witness with an optic. For a no-nonsense iron sight upgrade on a carry or range gun, the Defoor set is tough to beat.
Key Specifications
- Manufacturer: AmeriGlo
- Model: Defoor
- Manufacturer Part Number: GT-532
- UPC: 644406908906
- Fits: Glock 42, 43, 43X, 48
- Front Sight: Serrated black metal, .115 in. wide
- Rear Sight: Flat black Classic Style, square notch
- Rear Notch Style: Square Notch
- Construction: Nitride-treated alloy steel
- Finish: Flat black, low glare
- Color: Black
- Zero: Point-of-aim / point-of-impact at 25 yards
- Product Type: Front and rear sight set
- Country of Origin: Made in USA
What’s Included
- Serrated black front sight
- Flat black Classic Style rear sight
Frequently Asked Questions
Will the AmeriGlo Defoor sight set fit my Glock besides the 42 and 43?
Yes. The GT-532 set is made to fit the Glock 42, 43, 43X, and 48. It's a direct dovetail replacement for the factory sights on those subcompact and slimline models.
Are these Defoor sights night sights with tritium?
No, this is the all-black version with no tritium or fiber optic. The serrated front and flat rear are fully blacked out, which is a popular setup for range and competition work. If you want a glowing dot for low light, AmeriGlo offers a tritium front option in the Defoor line, but this GT-532 set is not it.
How do I install the AmeriGlo Defoor sights?
The sights drop into the standard Glock dovetails, and the easiest path is a sight pusher tool to remove the factory sights and press the new ones in. A pusher also lets you fine-tune windage so your groups land where you're aiming. Plenty of folks handle this at home, though a gunsmith can knock it out in a few minutes if you'd rather not buy the tool.
Will the Defoor sights co-witness with a red dot optic?
These are standard-height sights, so they are not built to co-witness through a mounted red dot. If you run an optic and want lower-third or absolute co-witness, you'll want a set of suppressor or optic-height sights instead.






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