Quick Summary
The Magpul MBUS PRO Offset Steel Backup Rear Sight is a black rear sight with a 45 degree offset to the right-hand side. It is designed to sit low when deployed and to tuck away neatly when stowed.
The sight includes windage adjustment and does not require tools for adjustment. Positive detents are stated for both the up and down positions.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Product type | Rear backup sight with offset mounting. |
| Colour | Black. |
| Offset position | 45 degree offset to the right-hand side, which is a key fit and orientation check. |
| Adjustment | Windage adjustment with no tools required. |
| Stowed profile | Snag-free, tucked away profile when stowed. |
| Deployed profile | Low profile when deployed, with standard AR height over bore when deployed. |
| Positioning | Positive detents in both the up and down positions. |
| Finish | Case hardened and finished with Melonite QPQ for resistance to wear and corrosion. |
What to Compare Before Buying
- Handedness and offset: This rear sight is offset to the right-hand side at 45 degrees. Check that this matches your intended setup.
- Deployed height: It sits at standard AR height over bore when deployed, so compare that with your rifle configuration.
- Adjustment method: Windage adjustment is tool-free, which matters if you want simple on-gun adjustment.
- Storage profile: The sight has a low, tucked-away profile when stowed, so consider how much clearance you want on the rail.
Before You Decide
Confirm the right-hand 45 degree offset matches your setup and that the deployed height suits your rifle. Check whether you want a rear backup sight with tool-free windage adjustment and a stowed, low-profile position.





