Samson Quick Flip A2 Rear Rail Mount AR-15 Aluminium Black FRS-A2
This Quick Flip A2 rear sight is made from 6061 aluminium, Mil-Spec hardcoat anodized for durability. It locks in both deployed and folded positions. The spring mechanism is quite durable and completely concealed to prevent fouling from dirt. The dual aperture rear BUIS has a conventional large and small aperture. The sigh deploys with the large aperture.