AR-15 Flip-Up Backup Forearm Front Sight - 1.8" Flip-Up Backup Forearm Front Sight Aluminum Black
$99.99 at Brownells · 5 stores
In stock
Best price
$99.99at Brownells
In stock checked Oct 1, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells Best price | $99.99checked Oct 1, 2026 | In stock | Buy at Brownells | |
| OpticsPlanet | $109.95Salechecked Oct 1, 2026 | In stock | Buy at OpticsPlanet | |
| Ammunition Depot | $124.99checked Oct 1, 2026 | In stock | Buy at Ammunition Depot | |
| Battlehawk Armory | $81.75Salechecked Oct 1, 2026 | Check store | Buy at Battlehawk Armory | |
| Magpul | $114.95checked Oct 1, 2026 | Check store | Buy at Magpul | |
| MidwayUSA | $118.70checked Oct 1, 2026 | Out of stock | Buy at MidwayUSA |
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: $99.99 at Brownells. Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Ammunition Depot | $124.99 | $124.99 | $124.99 |
| Battlehawk Armory | $81.75 | $81.75 | $81.75 |
| Brownells | $99.99 | $99.99 | $99.99 |
| Magpul | $114.95 | $114.95 | $114.95 |
| MidwayUSA | $118.70 | $92.82 | $118.70 |
| OpticsPlanet | $109.95 | $109.95 | $109.95 |
Since Sep 27, 2026.
About this part
The AR-15 Flip-Up MBUS Pro Magpul Back-Up Rear Sight Black is an iron sight from Magpul. It's sold by 6 stores (3 in stock), from $81.75 to $124.99. The lowest in-stock price in the last 30 days was $99.99 at Brownells.
Specifications
- Manufacturer
- Magpul
- Color
- Black
- Type
- Iron Sights
- Platform
- AR-15
- Magnification class
- 1x (non-magnified)
From the manufacturer
The MBUS Pro. The all-steel back up sighting solution that delivers maximum functionality and strength with minimum bulk at a price that’s even smaller than its size. The dual aperture, windage adjustable rear and no-tool, elevation adjustable front excel in all 1913 Picatinny rail mounting applications, including rail-height gas blocks.
Positive detents keep the MBUS PRO front and rear at standard AR sight height when deployed, and so low when they are stowed that you’ll never notice them until they’re needed. Narrow width front is compatible with most IR aiming laser and light installations for the professional user.
AR-15, Issue:11, Page:066
Big Book Catalog, Issue:70, Page:067
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