MBUS 3 Rear Sight Flip-Up Adjustable Polymer Black
$37.99 at Kentucky Gun Co · 10 stores
In stock
Best price
$36.99at Kentucky Gun Co
In stock checked Oct 24, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Kentucky Gun Co Best price | $36.99checked Oct 24, 2026 | In stock | Buy at Kentucky Gun Co | |
| GunMag Warehouse | $38.99checked Oct 24, 2026 | In stock | Buy at GunMag Warehouse | |
| OpticsPlanet | $48.99Salechecked Oct 24, 2026 | In stock | Buy at OpticsPlanet | |
| Ammunition Depot | $55.05checked Oct 24, 2026 | In stock | Buy at Ammunition Depot | |
| Sportsman's Warehouse | $55.99checked Oct 24, 2026 | In stock | Buy at Sportsman's Warehouse | |
| MidwayUSA | $55.99checked Oct 24, 2026 | In stock | Buy at MidwayUSA | |
| Battlehawk Armory | $37.00Salechecked Oct 24, 2026 | Check store | Buy at Battlehawk Armory | |
| Palmetto State Armory | $55.99checked Oct 24, 2026 | Check store | Buy at Palmetto State Armory | |
| Magpul | $57.95checked Oct 24, 2026 | Check store | Buy at Magpul | |
| Brownells | $39.99checked Oct 24, 2026 | Out of stock | Buy at Brownells |
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: $36.99 at Kentucky Gun Co. Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Ammunition Depot | $55.05 | $55.05 | $57.99 |
| Battlehawk Armory | $37.00 | $37.00 | $37.00 |
| Brownells | $39.99 | $39.99 | $39.99 |
| GunMag Warehouse | $38.99 | $38.99 | $38.99 |
| Kentucky Gun Co | $36.99 | $36.99 | $36.99 |
| Magpul | $57.95 | $57.95 | $57.95 |
| MidwayUSA | $55.99 | $55.99 | $55.99 |
| OpticsPlanet | $48.99 | $48.99 | $48.99 |
| Palmetto State Armory | $55.99 | $55.99 | $55.99 |
| Sportsman's Warehouse | $55.99 | $55.99 | $55.99 |
Since Sep 28, 2026.
About this part
The Tactical MBUS Rear Sight Flip-Up Polymer For AR-15 FDE is an iron sight from Magpul. It's sold by 10 stores (6 in stock), from $36.99 to $57.95. The lowest in-stock price in the last 30 days was $36.99 at Kentucky Gun Co.
Specifications
- Manufacturer
- Magpul
- Color
- Flat Dark Earth
- Type
- Iron Sights
- Magnification class
- 1x (non-magnified)
From the manufacturer
Low-profile, flattop-mounted, polymer sights deploy instantly at the touch of a finger to provide backup sighting if a primary optic fails. Streamlined contours mean there's nothing to snag on brush, sling, or other gear when folded. Spring-loaded ambidextrous release mechanism lets you hit the grooved tab on either side of the sight to deploy, and lock it in place. Hitting the same tabs retract the sight when you're done. Uses less than 1" of MIL-STD 1913 Picatinny receiver rail space and locks securely in place with the included steel crossbolt. Provides the same height over bore as standard A2 iron sights. Windage-adjustable rear sight has two apertures: a large, .185& Mfg: Magpul Reinforced, injection-molded polymer, Black, Dark Earth, or O.D. Green. Heights measured from top of rail to top of sight. Rear Sight - 1.5" (3.8cm) long deployed, 2.6" (6.8cm) long folded, 1.2" (3cm) wide, .5" (1.3cm) high folded, 1.6" (4cm) high extended. Large ape
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