FS: Like New
Flip-Up Rear Sight II from the WC website:
Coin Slot Windage Screw Our unique, new, flip-up sight for AR-15 style rifles is one of the most versatile available. Key features include: rock-solid 2 bolt mounting system, bi-directional adjustment for both windage and elevation, positive mount in the upward position, improved sight picture with a large aperture peep sight. The sight will mount on any standard weaver or picatinny rail.
$100 shipped in lower 48 states.