SIG Sauer SIERRA3BDX

The Ballistic Data Xchange (BDX) system eliminates the guesswork of holdover. When paired with a compatible SIG Sauer KILO rangefinder, the rangefinder calculates the ballistic solution and instantly illuminates the correct holdover dot on your scope's reticle via Bluetooth, allowing for precise shots out to 800 yards.

You can use the scope as a standard optic without the app, but you will lose the primary benefit of the BDX system. The SIG BDX app is essential for inputting your specific ammunition data and environmental conditions, which allows the system to calculate the accurate holdover points.

No, this specific model is not rated as waterproof, fogproof, or shockproof. You should exercise caution when using it in wet or extreme environments to prevent damage to the internal electronics and optics.

This scope features a 4.5-14X magnification range, making it versatile for both mid-range and longer-distance shooting. It utilizes a Second Focal Plane (SFP) reticle, meaning the reticle size remains constant regardless of your magnification setting.

Yes, the scope requires a CR2032 battery to power the BDX Bluetooth connectivity and the illuminated holdover reticle. It is a good practice to carry a spare, as the electronic features will not function without power.

No, this model does not feature an adjustable parallax setting. It is set at a fixed distance, so you should be aware of this limitation if you are shooting at varying ranges where parallax error might become a factor.