The MagPul PTS MBUS Back-Up Sights are a great innovative flip sight system for the M4/M16. Both front and rear sight bolt firmly to the weaver rail. Each sight is spring loaded in the down position with ambidextrous release buttons. These are great back up sights for any gun with a continuous flat top rail. Magpul improved the design even more with their newest generation of the MBUS. The lower Profile of the Gen.2 MBUS greatly improve optics compatibility due to their ability to fold to a profile of only approximately a half-inch. Magpul also improved on the design by making both the large and small aperture visible on the same plane of view. The PTS MBUS Sights are adjustable for windage and fits all Milspec 1913 Picatinny rails equipped for airsoft, specifically tailored to the AR15 platform.

Specifications:
Manufacturer: MagPul PTS
Model: MBUS 2 Front Sight
Color: Black
Package Includes: One (1) Sight

Features:
Spring-loaded
Same Plane Small and Large Aperatures
Lightweight Reinforced Polymer Construction