Sig Sauer

The SIERRA3BDX is a compact and lightweight riflescope designed for ultra-lightweight rifle, shotgun muzzleloader and crossbow configurations. With the power of the included BDX technology, it provides your exact holdover dot location on targets when coupled with a BDX capable KILO rangefinder. Featuring MOTAC (Motion Activated Illumination) that powers up when it senses motion and powers down when it does not; Automatic holdover dot on a Digital Focal Plane, combining Second Focal Plane stadias, with an OLED illuminated ballistic holdover dot that automatically scales with zoom to subtend on target at any magnification level. The SIG BDX App now include profiles for crossbow ballistics, through entering bolt weight and speed.