Kensight Glock Adjustable Square Blade Rear Sight 0.350in Tall Black. In addition the factory fixed sight dovetail placed at the very rear of the slide is small shallow and not generally seen as ideal for an adjustable sight. Kensight has designed sight set to fit the LARGE FRAME Glock pistols. This fully adjustable rear utilizes the factory dovetail without having to modify the slide. It is precise and practical well-built and able to withstand a lifetime of use. Because it is a fairly tall sight that sits completely on top of the side a front sight with a minimum height of .315is necessary. This is why Kensight had beveled the rear blade to prevent snagging and to protect the shooters hands. This sight is fully adjustable for windage and elevation. With positive clicks a simple turn of the screw will let you dial it in to shoot at any reasonable distance. Not only is the sight highly effective and easy to use it looks good too Knowledgeable shooters will note that our rear sight blade does not extend past the rear of the slide like many other adjustables that can extend 1/4" past the slide putting your hands and clothes at risk. Specifications for Kensight Glock Adjustable Square Blade Rear Sight: Manufacturer: Kensight Gun Make: Glock Gun Model: Glock 25 Glock 28 Glock 22 Glock 17 Glock 43 Glock 42 Glock 27 Glock 26 Glock 23 Glock 19 Color: Black Fabric/Material: 4140 Chrome Moly Steel Gun Type: Pistol Mount Type: Dovetail Package Contents: Kensight Glock Adjustable Square Blade Rear Sight What firearm models does the manufacturer say Kensight Glock Adjustable Square Blade Rear Sight is compatible with? The manufacturer says that Kensight Glock Adjustable Square Blade Rear Sight is compatible with Glock 19 Glock 23 Glock 26 Glock 27 Glock 42 Glock 43 Glock 17 Glock 22 Glock 28 Glock 25Kensight 980-821: Glock Adjustable Square Blade Rear Sight 0.350in Tall Black