Sig Sauer Sierra3 BDX 3.5-10x42mm Rifle Scope BDX-R1 Reticle

The Sig Sauer Sierra3 BDX 3.5-10x42mm rifle scope transforms long-range shooting with integrated ballistic data exchange technology that automatically calculates holdovers and windage corrections. This advanced riflescope connects wirelessly to Sig's KILO rangefinders, delivering precise shooting solutions in real-time without manual calculations or guesswork.

What Makes This Different

The Sierra3 BDX system eliminates the traditional trial-and-error approach to long-range shooting by providing instant ballistic solutions through Bluetooth connectivity. While conventional scopes require shooters to memorize drop charts or make manual adjustments, the BDX technology automatically illuminates the correct aiming point on the BDX-R1 reticle based on actual range data. This integration reduces shot preparation time from minutes to seconds, giving shooters a significant advantage in hunting and precision shooting scenarios.

Key Features

• Wireless BDX ballistic data exchange with compatible KILO rangefinders
• Illuminated BDX-R1 digital reticle with multiple brightness settings
• 3.5-10x variable magnification with 42mm objective lens
• 30mm aircraft-grade aluminum tube construction
• IPX-7 waterproof rating and fog-proof nitrogen purging
• Low-dispersion glass elements with proprietary lens coatings
• Side focus parallax adjustment from 25 yards to infinity

Field performance demonstrates the scope's capability across diverse shooting applications, from precision rifle competitions to big game hunting at extended ranges. The scope maintains zero retention through heavy recoil and temperature fluctuations, while the illuminated reticle remains visible in low-light conditions without washing out the target image. Battery life extends through thousands of rounds with automatic shut-off features preserving power during extended hunts or matches.

Technical Specs

• Magnification: 3.5-10x with 42mm objective diameter
• Tube diameter: 30mm with black anodized finish
• Eye relief: 3.9 inches across magnification range
• Field of view: 29.5-10.5 feet at 100 yards
• Turret adjustments: 1/4 MOA tactical-style with audible clicks
• Weight: 23.8 ounces with included lens covers
• Length: 13.4 inches overall with protective caps
• Country of origin: Philippines with global warranty support

The Sierra3 BDX represents a significant advancement in precision optics technology, combining traditional riflescope reliability with cutting-edge ballistic computing capabilities. Shooters investing in this system gain immediate access to professional-grade ranging and trajectory solutions previously available only through expensive military-grade equipment.