Kexuan 1 in Advanced Tactical Flip Up Front And Rear Sight Set Aluminum Black. Trinity Force. Specifications for Kexuan Advanced Tactical Flip Up Front And Rear Sight Set: Manufacturer: Kexuan Color: Black Features of Kexuan Advanced Tactical Flip Up Front And Rear Sight Set High quality aluminum Precision Windage and Elevation Adjustments Secure lock push button flip-up design Dual Aiming Aperture with thumb dial Includes front and rear flip up sights 1 in High. For use on the same plane height as each other. Package Contents: Kexuan Advanced Tactical Flip Up Front And Rear Sight Set Hex wrench Kexuan MFLRS09: 1 in Advanced Tactical Flip Up Front And Rear Sight Set Aluminum Black