Tango MSR 2-12x40mm FFP Illum MOA Milling Ret W/MSR Mount
$396.90 at Kentucky Gun Co · 9 stores
In stock
Riflescope Sierra3bdx 3.5-10x42mm SFP Illuminated BDX-R1 Reticle Black
No ratings yetBest price
$399.99at Brownells
In stock Sale checked Oct 24, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells Best price | $399.99Salechecked Oct 24, 2026 | In stock | Buy at Brownells | |
| Kentucky Gun Co | $463.44checked Oct 24, 2026 | In stock | Buy at Kentucky Gun Co | |
| OpticsPlanet | $499.99Salechecked Oct 24, 2026 | In stock | Buy at OpticsPlanet | |
| Ammunition Depot | $549.99checked Oct 24, 2026 | In stock | Buy at Ammunition Depot | |
| Battlehawk Armory | $415.28Salechecked Oct 23, 2026 | Check store | Buy at Battlehawk Armory | |
| Palmetto State Armory | $550.99checked Oct 22, 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: $399.99 at Brownells. Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Ammunition Depot | $549.99 | $549.99 | $549.99 |
| Battlehawk Armory | $415.28 | $415.28 | $415.28 |
| Brownells | $399.99 | $399.99 | $399.99 |
| Kentucky Gun Co | $463.44 | $463.44 | $463.44 |
| OpticsPlanet | $499.99 | $499.99 | $499.99 |
| Palmetto State Armory | $550.99 | $550.99 | $559.99 |
Since Sep 27, 2026.
About this part
The Riflescope Sierra3bdx 3.5-10x42mm SFP Illuminated BDX-R1 Reticle Black is a rifle scope from Sig Sauer. It's sold by 6 stores (4 in stock), from $399.99 to $550.99. The lowest in-stock price in the last 30 days was $399.99 at Brownells.
Specifications
- Manufacturer
- Sig Sauer
- Color
- Black
- Type
- Rifle Scope
- Illuminated
- Yes
- Magnification
- 3.5-10x
- Magnification class
- 6-10x
- Focal plane
- SFP
From the manufacturer
The SIG Sauer BDX system is one of the most revolutionary entrances into the world of optics in decades, and the SIG Sauer Sierra3BDX riflescope is designed as a critical component of that system enabling users to get first-round hits faster and easier than ever before. In conjunction with the company's BDX rangefinder, the SIG Sauer Sierra3BDX riflescope provides a shooting solution at ranges out to 800 yards, illuminating the reticle with a bright dot that shows shooters where to hold on their target. Second focal plane reticle Weight: 20.9 ounces 3.5-10x42mm size Adjustment value: 1/4 MOA Like the company's other optics, the SIG Sauer Sierra Mfg: Sig Sauer, Inc.
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