This is the Magpul MBUS Pro Rear Sight an all steel fold down backup sight.
A sleek extremely hard wearing profile that is not noticeable when folded down.
Mounts on any Military standard 1913 Picatinny or STANAG 4694 rail including receiver-height gas blocks.
- All steel
- Dual aperture
- Windage adjustable with no tools required
- Positive detents when deployed or folded
- Narrow width front sight in the set is compatible with laser and IR use
- Different post sizes available
- Case hardened and Melonite treated for extreme durability
- Standard AR sight height when deployed