MBUS 3 Rear Sight Flip-Up Adjustable Polymer FDE
$37.99 at Kentucky Gun Co · 10 stores
In stock
Best price
$37.99at Kentucky Gun Co
In stock checked Oct 21, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Kentucky Gun Co Best price | $37.99checked Oct 21, 2026 | In stock | Buy at Kentucky Gun Co | |
| GunMag Warehouse | $44.99checked Oct 21, 2026 | In stock | Buy at GunMag Warehouse | |
| OpticsPlanet | $48.99Salechecked Oct 21, 2026 | In stock | Buy at OpticsPlanet | |
| Brownells | $56.95checked Oct 21, 2026 | In stock | Buy at Brownells | |
| MidwayUSA | $56.95checked Oct 21, 2026 | In stock | Buy at MidwayUSA | |
| Ammunition Depot | $59.99checked Oct 21, 2026 | In stock | Buy at Ammunition Depot | |
| Battlehawk Armory | $38.26Salechecked Oct 21, 2026 | Check store | Buy at Battlehawk Armory | |
| Palmetto State Armory | $56.99checked Oct 21, 2026 | Check store | Buy at Palmetto State Armory | |
| Magpul | $59.95checked Oct 21, 2026 | Check store | Buy at Magpul |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Price history
Lowest in-stock price in the last 30 days: $37.99 at Kentucky Gun Co. Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Ammunition Depot | $59.99 | $56.95 | $59.99 |
| Battlehawk Armory | $38.26 | $38.26 | $38.26 |
| Brownells | $56.95 | $56.95 | $56.95 |
| GunMag Warehouse | $44.99 | $40.99 | $44.99 |
| Kentucky Gun Co | $37.99 | $37.99 | $37.99 |
| Magpul | $59.95 | $59.95 | $59.95 |
| MidwayUSA | $56.95 | $48.40 | $56.95 |
| OpticsPlanet | $48.99 | $48.99 | $48.99 |
| Palmetto State Armory | $56.99 | $56.99 | $56.99 |
Since Sep 27, 2026.
About this part
The MBUS 3 Rear Sight Flip-Up Adjustable Polymer Black is an iron sight from Magpul. It's sold by 9 stores (6 in stock), from $37.99 to $59.99. The lowest in-stock price in the last 30 days was $37.99 at Kentucky Gun Co.
Specifications
- Manufacturer
- Magpul
- Color
- Black
- Type
- Iron Sights
- Magnification class
- 1x (non-magnified)
From the manufacturer
The next evolution in Magpul's MBUS (MagpulA(R) Back-Up Sight) line, the MBUS 3 incorporates the best features, strengths and value of Magpul's original MBUS and MBUS Pro Sights in a feature-packed back-up sight system. Significantly reduced in size from the MBUS, it sits at just .44" when folded and 1.15" at its widest point. Its aesthetics are derived from the MBUS Pro, but the MBUS 3 Rear Sight is constructed of their impact-resistant polymer, making it lightweight and extremely durable. Featuring the same spring-loaded technology as its predecessor, they can be deployed with an ambidextrous push-button. The MBUS 3 sits at standard AR-height when deployed Mfg: Magpul
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