Brand New ! Glock OEM Factory Adjustable Rear sight Fits All Glock Models Gen 1-4
- This Glock Rear sight is interchangeable with all Glock Models
- Factory Sight Adjustment Height
- 9mm Luger, 40 S&W, 357 Sig, 380 ACP is 6.5mm (.256")
- 45 ACP, 10mm is 6.9mm (.27")
- A change in sight height by one increment, for example from .256 to .27, will result in a shift of approximately 2" (higher) at 25 yards, given no change to the front sight
