Magpul Industries, MBUS Back-Up Front Sight Gen 2, Fits Picatinny Rails, Flip Up, Flat Dark Earth
- Spring loaded flip up sight
- Easily activated from either side or by pressing the top
- Protective wings shield the spring-locking A2 front sight post
- Polymer construction provides light weight and resists abuse
- Detent and spring pressure keeps sight in place but allows for unobstructed folding under impact