Sig Sauer Sierra3 BDX 30mm Tube, Illuminated BDX-R1

The SIG SAUER Sierra3 BDX riflescope integrates the BDX Ballistic Data Xchange to provide an illuminated auto-holdover dot when paired with a BDX-capable KILO rangefinder. It combines SpectraCoat lenses with digital features such as LevelPlex anti-cant and KinETHIC kinetic energy transfer indication to support informed, ethical field decisions. The design retains the familiar riflescope form factor while offering modern digital ballistic functionality.

Key Specifications

• The objective lens diameter is 50mm.
• The tube diameter is 30mm.
• The reticle is an Illuminated BDX-R1.
• The optical coating uses SpectraCoat.
• Parallax is adjustable at 100 yds.
• Windage/elevation adjustment size is .25 MOA.
• The field of view is 6.70 - 19.90 ft @ 100 yds.
• Eye relief ranges 3.35" - 4.21".
• The weight is 24.90 oz.
• It is rated IPX-7 waterproof and is fog-proof.

Designed for shooters who value optical clarity and integrated ballistic tools, the Sierra3 BDX pairs modern digital features with proven optical performance. SpectraCoat lenses, LevelPlex anti-cant, and KinETHIC indicators make this scope a practical choice for field use when paired with compatible BDX rangefinders and the SIG BDX app.