Ahg-Duo Iris Front Sight

1.The inner and outer diameters of this front sight are continuously variable and thus offer the optimum possibilities for adjusting to the particular target sizes or lighting conditions. 2.The extraordinarily wide adjustment range makes the Duo Iris Front Sight a perfect choice for all shooting disciplines. 3. The Duo Iris is available in different versions, with or without cross hair, M18 or M22 and in different inner and outer adjustable diameters. Setting range: 2.8-4.8 mm inner / 6.4-9.0 mm outer 3.8-5.8 mm inner / 7.6-10.2 mm outer