Discontinued - M.P PTS OEM MBUS Rear Sight ( Back Up Sight / Foliage Green)

- Airsoft Version of MBUS ( M.P Back Up Sight ) - Rear Sight Only - Spring Loaded Flip-Up system, deployed by pressing release point which can be reached by both sides or on top. - Sights lock into position with audible click sound, and fold without having to release any lock. - Dual Apertures and Adjustable Windage. - Same High-Strength Polymer Material As PMAG. - Fits 20mm Rails.