Glock Factory OEM Sight 7.3mm .290" For All Glocks Fixed Rear SP00210 Glock Factory OEM Fixed Rear Sight (Not for the G42 or G43) Height: 7.3mm (.287) Interchangeable - Fits all Glock Pistols excluding the new Slim-Line models G42 & G43 (does NOT fit the G42 or G43) Glock Factory OEM (OEM Bulk Packaged). Manufactured to the same exacting standards as the original, guaranteeing excellent fit and reliable operation.