FAB Defense AR-15 Iron Sight Set Flip Up - FRBS-B
$70.49 at OpticsPlanet · 7 stores
In stock Sale
Best price
$70.99at GunMag Warehouse
In stock checked Oct 1, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| GunMag Warehouse Best price | $70.99checked Oct 1, 2026 | In stock | Buy at GunMag Warehouse | |
| Sportsman's Warehouse | $94.99checked Oct 1, 2026 | In stock | Buy at Sportsman's Warehouse | |
| Rainier Arms | $80.70not checked recently | Check store | Buy at Rainier Arms | |
| CMMG | $90.95checked Oct 1, 2026 | Check store | Buy at CMMG | |
| Magpul | $94.95checked Oct 1, 2026 | Check store | Buy at Magpul | |
| Palmetto State Armory | $99.99checked Oct 1, 2026 | Check store | Buy at Palmetto State Armory |
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: $70.99 at GunMag Warehouse. Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| CMMG | $90.95 | $90.95 | $90.95 |
| GunMag Warehouse | $70.99 | $70.99 | $70.99 |
| Magpul | $94.95 | $94.95 | $94.95 |
| Palmetto State Armory | $99.99 | $99.99 | $99.99 |
| Sportsman's Warehouse | $94.99 | $94.99 | $94.99 |
Since Sep 28, 2026.
About this part
The Magpul MBUS Pro - Magpul Back-Up Sight – Front MAG275 is an iron sight. It's sold by 6 stores (2 in stock), from $70.99 to $99.99. The lowest in-stock price in the last 30 days was $70.99 at GunMag Warehouse.
Specifications
- Type
- Iron Sights
- Magnification class
- 1x (non-magnified)
From the manufacturer
The MBUS® Pro is a corrosion resistant 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. Made in U.S.A.
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