The most suitable Iris Aperture for 10 m Air Rifle Shooting. It is also known as sight Filter in India. It helps in keeping your sight vision similar to your home club/range. You can easily adjust the brightness and color of the sight picture with this aperture. Filter colors: light gray, yellow, C41 Peach, C41blue and C41 UV Meeting the demands of an optimal adjustment range from 0,8 – 1,8 mm Contact us at 70822-33324, if the product is in pre-order status.