- 1 x SIG SAUER SIERRA4BDX Riflescope
- 2 x CR2032 Battery
- 1 x Quick Start Guide
Trusted & Verified
SIG SAUER SIERRA4BDX 4-16x44mm Waterproof Riflescope with BDX-R2 Reticle and Multi-Coated Optics
- 4 to 16x Magnification
- 44 mm Objective Lens
- 30 mm Maintube
- BDX-R2 Digital Ballistic Reticle
- 194 Individually Controlled LEDs
- Digital Focal Plane
- BDX 2.0 Connectivity
- SmartBDC Support
- SIG SAUER BDX App compatibility
- Up to 25 Custom Profiles through the app
- MOTAC Illumination Control
- LevelPlex Digital System
- Greater than 70 MOA Elevation Travel
- Greater than 70 MOA Windage Travel
- Two CR2032 Batteries
- IPX7 Water-resistant
- 12-inch Overall Length
- 22.7 oz Weight
The SIG SAUER SIERRA4BDX 4 to 16x44 mm riflescope combines conventional magnified optics with the BDX-R2 digital reticle. The digital focal plane uses 194 individually controlled LEDs to display illuminated hold points while maintaining the underlying second focal plane reticle structure. A 44 mm objective and 30 mm maintube support the 4 to 16x optical range.
BDX 2.0 Digital Data System
BDX 2.0 allows the riflescope to communicate with compatible KILO BDX rangefinders through Bluetooth. Range and environmental data can be transferred to the scope, where the corresponding hold point is illuminated in the reticle. The system is also compatible with the SIG SAUER BDX app for profile configuration and additional settings.
SmartBDC and Digital Reticle Control
The scope also supports custom configuration through the BDX app, while Digital Focal Plane technology automatically scales the illuminated hold point as magnification changes.
Optical and Environmental Construction
SpectraCoat anti reflection lens coatings support light transmission across the visible spectrum, while the current product page specifies up to 95 percent light transmission. The riflescope is IPX7-rated for immersion up to 1 meter and includes MOTAC motion activated illumination and LevelPlex digital anti cant functionality.
| Magnification | 4-16x |
| Objective Lens Diameter | 44 mm |
| Overall Length | 12 inches |
| Weight | 22.7 oz. |
| Maintube Diameter | 30 mm |
| Total Elevation Travel | More than 70MOA |
| Total Windage Travel | More than 70MOA |
| Travel Per Rotation | 25 MOA |
| Eye Relief Low | 3.24 inches |
| Eye Relief High | 2.44 inches |
| Field of View Low (FT at 100 Yards) | 0.8- 3.33 |
| Field of View High (FT at 100 Yards) | 1.25-5 |
| Diopter Adjustment Range | +/- 2 |
| Color | Black |
| Mount Included | No |
| Battery | 2 x CR2032 |
| Focal Plane | Digital |
| Reticle | BDX-R2 Digital Ballistic Reticle w/194 LEDS |
| Illumination | Yes |
Starting at $58.33/mo
Estimated over 12 months with Affirm, subject to eligibility and approval.
Flexible payment options available
Interest-free installments and monthly financing may be available through Shop Pay on eligible purchases.
Starting at $175.00
No interest if paid in full by the promotional terms. Minimum monthly payments required and subject to credit approval.
Shipping Policy
Orders of $25 or more qualify for free standard shipping on eligible items.
Most in-stock orders placed before 3PM EST Monday–Friday ship the same business day. View Shipping Policy
Free Local Pickup
Please call for store stock availability. Requests made before 2:30 PM EST can be available for next-day pickup. Learn more
Tab: Frequently Asked Questions
How do I return an item?
How do I return an item?
Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.
Will I receive a full refund when I return an item?
Will I receive a full refund when I return an item?
You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges.
How many days do I have to make a return?
How many days do I have to make a return?
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days.
My item was damaged in transit. How do I place a return?
My item was damaged in transit. How do I place a return?
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact support@focuscamera.com with your order number and a description of the damage.
There’s an issue with my order, what should I do?
There’s an issue with my order, what should I do?
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at support@focuscamera.com, or send us a message here.
Can I exchange an item?
Can I exchange an item?
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead.
If I ordered a kit, do I have to return all the items?
If I ordered a kit, do I have to return all the items?
If you ordered a kit, you must return all components and accessories to receive a full refund.
I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?
I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund.
Do you offer repairs?
Do you offer repairs?
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900.
What is your return policy?
What is your return policy?
Most items can be returned within 30 days for a full refund. Click here to read our full return policy.
