This sight and scope rail is designed for when something goes wrong. In case something happens to your primary sighting option, you have an ""Ace in the Hole"" A backup aperture sight. Picatinny scope rail Rear 3/8 x .093 aperture has windage and elevation adjustment CNC machined out of high grade aluminum Includes steel fiber optic front sight. Mfg: Williams Gun Sight

This sight and scope rail is designed for when something goes wrong. In case something happens to your primary sighting option, you have an ""Ace in the Hole"" A backup aperture sight. Picatinny scope rail Rear 3/8 x .093 aperture has windage and elevation adjustment CNC machined out of high grade aluminum Includes steel fiber optic front sight. Mfg: Williams Gun Sight

Scope rail is CNC machined to standard 1913 picatinny specifications. Features extra cross slots for versatility of mounting options. Includes an Ace In The Hole backup sight. Fully adjustable (windage and elevation) aperture sight built right into the scope base. Aperture sights offer longer sight radius and faster target acquisition.