SIG Sauer Optics
SIG Sauer SIERRA
Specs, variants & prices
SIG Sauer currently makes 6 versions of the SIERRA optic. Listed lengths run from 12" to 13.9". SIG Sauer's suggested retail prices run from $699.99 to $1,449.99, and stores set their own prices from there. The table below lines up every version so you can compare them at a glance.
What versions of the SIG Sauer SIERRA are there?
6 current versions. Specs and measurements are SIG Sauer's own.
SIERRA3BDX 6.5-20X52MM (SFP) — BDX-R1 Digital
—- Model / part #
- SOSBDX36111
- Magnification
- 6.5-20x
- Objective
- 30 mm
- Reticle
- BDX-R1 Digital
- Overall length
- —
- Weight
- —
- Finish
- Black
- Details
- Maintube: 30mm · Mount included: No · Battery: (2) CR2032 · Focal plane: Second
- MSRP
- $849.99
SIERRA4-BDX 4-16X44MM — BDX-R2 Digital Ballistic Reticle w/194 LEDS
—- Model / part #
- SOSBDX44111
- Magnification
- 4-16x
- Objective
- 44 mm
- Reticle
- BDX-R2 Digital Ballistic Reticle w/194 LEDS
- Overall length
- 12.0"
- Weight
- 22.7 oz
- Finish
- Black
- Details
- Maintube: 30mm · Mount included: No · Battery: (2) CR2032 · Focal plane: Digital
- MSRP
- $699.99
SIERRA4-BDX 6-24X50MM — BDX-R2 Digital Ballistic Reticle w/194 LEDS
—- Model / part #
- SOSBDX46111
- Magnification
- 6-24x
- Objective
- 50 mm
- Reticle
- BDX-R2 Digital Ballistic Reticle w/194 LEDS
- Overall length
- 13.9"
- Weight
- 24.4 oz
- Finish
- Black
- Details
- Maintube: 30mm · Mount included: No · Battery: (2) CR2032 · Focal plane: Digital
- MSRP
- $799.99
SIERRA6BDX 2-12X40MM (SFP) — BDX-R2
—- Model / part #
- SOSBDX62111
- Magnification
- 2-12x
- Objective
- 40 mm
- Reticle
- BDX-R2
- Overall length
- —
- Weight
- —
- Finish
- Black
- Details
- Maintube: 30mm · Mount included: No · Battery: (2) CR2032 · Focal plane: Digital
- MSRP
- $929.99
SIERRA6BDX 3-18X44MM (SFP) — BDX-R2
—- Model / part #
- SOSBDX63111
- Magnification
- 3-18x
- Objective
- 44 mm
- Reticle
- BDX-R2
- Overall length
- —
- Weight
- —
- Finish
- Black
- Details
- Maintube: 30mm · Mount included: No · Battery: (2) CR2032 · Focal plane: Digital
- MSRP
- $1,029.99
SIERRA6BDX 5-30X56MM (SFP) — BDX-R2
—- Model / part #
- SOSBDX65111
- Magnification
- 5-30x
- Objective
- 56 mm
- Reticle
- BDX-R2
- Overall length
- —
- Weight
- —
- Finish
- Black
- Details
- Maintube: 34mm · Mount included: No · Battery: (2) CR2032 · Focal plane: Digital
- MSRP
- $1,449.99
How much does a SIG Sauer SIERRA cost?
SIG Sauer's suggested retail prices run from $699.99 to $1,449.99, depending on the version.
Can you buy one in California or Massachusetts?
SIG Sauer leaves California and Massachusetts blank for this product. Some states limit which accessories a dealer can sell. State rules change, so check our California and Massachusetts pages before you buy.
What's the latest on the SIERRA?
Nothing new on the SIERRA lately.
Specs from SIG Sauer, checked July 24, 2025 (source). SIG Sauer's site blocks scripted requests, so this table was read from a saved copy of the product page. Spot a mistake? Let us know and we'll fix it. SIG Sauer is a trademark of its owner, listed for identification only. Firearms Almanac isn't affiliated with SIG Sauer.