Close Menu
Firearms Forever
  • Home
  • Hunting
  • Guns
  • Defense
  • Videos
Trending Now

Glossary of Firearm-Related Acronyms

January 13, 2026

America’s Forgotten Doughboys: The 332nd Infantry Destroyed an Empire

January 13, 2026

Historical Data Can Help You Kill Bucks During the Rut

January 13, 2026
Facebook X (Twitter) Instagram
Facebook X (Twitter) Instagram
Firearms Forever
SUBSCRIBE
  • Home
  • Hunting
  • Guns
  • Defense
  • Videos
Firearms Forever
Home»Guns»First Look: SIG Sauer Sierra4-BDX Rifle Scopes
Guns

First Look: SIG Sauer Sierra4-BDX Rifle Scopes

Tim HuntBy Tim HuntAugust 22, 20252 Mins Read
Facebook Twitter Pinterest LinkedIn Tumblr Email
First Look: SIG Sauer Sierra4-BDX Rifle Scopes

The new Sierra4-BDX is SIG Sauer’s most advanced BDX enabled riflescope yet. The scope pairs seamlessly with SIG’s line of Kilo BDX rangefinders and create a precise holdover dot based on your ballistic performance of your cartridge, environmental conditions and distance to the target.

The Sierra4-BDX riflescope simplifies shooting at distance by connecting to BDX-equipped rangefinders to deliver an illuminated holdover dot specific to your target distance, ballistic performance and other factors like the wind and weather. With a digital focal plane and 194 LED hold points, Sierra4-BDX scopes make it easy to make the shot when it matters the most.

Sierra4-BDX Features:

  • BDX Ballistic Data Xchange Technology: Pairs with KiloBDX rangefinders to calculate and display an exact holdover dot using real-time ballistic and environmental data.
  • BDX-R2 Digital Reticle: 194 individually controlled LEDs on a digital focal plane for hyper-precise aiming.
  • SmartBDC Technology: Choose from 9 onboard ballistic groups or customize your setup for total control.
  • Advanced Bluetooth Antennae: Improved connectivity up to 30 yards, an important feature for shooter-spotter pairs when terrain dictates your position.
  • Rugged Performance: Waterproof (IPX7), 30mm main tube and high-grade optical system with up to 95 percent light transmission.

Sierra4-BDX 4-16x44mm Second Focal Plane (SFP) Specifications

  • Magnification: 4-16X
  • Objective Lens Diameter: 44 mm
  • Weight : 22.7 ounces
  • Main Tube Diameter: 30mm
  • Total Elevation Travel: 70 MOA+

Sierra4-BDX 6-24x50mm Second Focal Plane (SFP) Specifications

  • Magnification: 6-24X
  • Objective Lens Diameter: 50mm
  • Weight : 24.4 ounces
  • Main Tube Diameter: 30mm
  • Total Elevation Travel: 48 MOA+

MSRP for the Sierra4-BDX 4-16x44mm is $699.99, and the MSRP for the Sierra4-BDX 6-24x50mm is $799.99. More information on these new optics, the KiloBDX line of rangefinders and other firearms, accessories and optical products made by SIG Sauer is available at sigsauer.com.

Read the full article here

Share. Facebook Twitter Pinterest LinkedIn Telegram Reddit Email
Previous ArticleThe D Brief: DOD’s drone-warfare plans; ODNI to shrink further; ICE seeks volunteers; Black Hawk upgrades; And a bit more.
Next Article Flesh-Eating Flies Pose Risk To Southern Deer Populations

Related Posts

Glossary of Firearm-Related Acronyms

January 13, 2026

First Look: Viridian Venta Green-Dot Sight

January 12, 2026

Venezuela Military HUNTS Americans For Revenge – Trump Must Strike Fast

January 12, 2026

Iran Prepares Major BOMBING Strike – Dictator Flees Into Hiding

January 12, 2026

Trump Prepares To BOMB Mexico – Delta Force On HIGH ALERT

January 12, 2026

The Fix: How to Deal With a Bad Instructor

January 11, 2026
Don't Miss

America’s Forgotten Doughboys: The 332nd Infantry Destroyed an Empire

By Tim HuntJanuary 13, 2026

While millions of Americans can name Western Front battles like Belleau Wood or the Meuse-Argonne,…

Historical Data Can Help You Kill Bucks During the Rut

January 13, 2026

Kentucky Nonprofit Honored with National Award for Supporting Disabled Veterans

January 13, 2026

Ep. 19: Shadows of the Frontier

January 13, 2026

Subscribe to Updates

Get the latest firearms news and updates directly to your inbox.

  • Home
  • Privacy Policy
  • Terms of use
  • Contact
© 2026 Firearms Forever. All Rights Reserved.

Type above and press Enter to search. Press Esc to cancel.