AR-15 Imperial Buis Sight Set Black
$312.75 at Brownells · 3 stores
In stock
Backup Iron Buis AR-15 Tritium Flip-Up Sight With CSAT & Tritium Stripe
XS Sight Systems · Sights & Optics
No ratings yetBest price
$318.14at Brownells
In stock checked Oct 24, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells Best price | $318.14checked Oct 24, 2026 | In stock | Buy at Brownells | |
| Ammunition Depot | $318.14checked Oct 24, 2026 | In stock | Buy at Ammunition Depot | |
| Palmetto State Armory | $318.99Salechecked Oct 22, 2026 | Check store | Buy at Palmetto State Armory | |
| MidwayUSA | $270.42Salechecked Oct 6, 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: $270.42 at MidwayUSA. Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Ammunition Depot | $318.14 | $318.14 | $318.14 |
| Brownells | $318.14 | $318.14 | $318.14 |
| MidwayUSA | — | $270.42 | $318.14 |
| Palmetto State Armory | $318.99 | $318.99 | $318.99 |
Since Sep 27, 2026.
About this part
The Backup Iron Buis AR-15 Tritium Flip-Up Sight With CSAT & Tritium Stripe is an iron sight from XS Sight Systems. It's sold by 4 stores (2 in stock), from $270.42 to $318.99. The lowest in-stock price in the last 30 days was $270.42 at MidwayUSA.
Specifications
- Manufacturer
- XS Sight Systems
- Type
- Iron Sights
- Magnification class
- 1x (non-magnified)
From the manufacturer
Samson quick flip up sight bases are constructed from aluminum, have stainless steel clamps, and are hard coat anodized. With milspec dimensions, the sights lock into position and attach to any 1913 Picatinny rail. Front sight features XS Tritium Stripe front: 0.105" wide front post with vertical tritium stripe and white painted outline for visibility in any light. Rear sight features XS CSAT same plane aperture. CQB situations made easy with notch providing a 7 yard zero, aperture a 100 yard zero, or flip to the large battle aperture, all while maintaining zero. Mfg: Xs Sight Systems
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