SPORT RIDGE® AR15 Rear Sight attaches to any 1913 Picatinny rail designed for mounting behind or under most optics. The rear sight is windage finger adjustable and includes low light and standard aperture. AR15 Rear Sight locks in the upright position. 
 
Description: 
Adjustable Windage Rear Sight
Low Profile Design
Locks in The Up Position
 
USA Engineered