When used together KILO BDX rangefinders and SIERRA BDX riflescopes combine to create the most advanced optics system available on the market today. Simply configure your ballistics profile in the BDX app, pair your KILO BDX rangefinder with the app, and then bond it to your SIERRA BDX riflescope. When you range your target the KILO BDX rangefinder automatically sends your specific holdover data to your SIERRA BDX riflescope giving you an illuminated holdover dot. It’s simple and fast.

Sierra 3 4.5-14x44

Disguised within the form factor of a traditional riflescope lies the power of the SIG SAUER BDX Ballistic Data Xchange. The SIERRA3BDX riflescope provides the hunter an illuminated auto-holdover dot on targets when coupled with a BDX capable KILO rangefinder. Featuring exceptional SpectraCoat lenses, LevelPlex digital anti-cant, and KinETHIC kinetic energy transfer indicator, the SIERRA3BDX is incredibly simple to use. Range a target, put the holdover dot on target, pull the trigger, impact. SIG SAUER’s BDX, just CONNECT THE DOT

Kilo 1800 Rangefinder

Featuring SIG SAUER’s BDX technology, the KILO BDX is the world’s most advanced laser rangefinder. When paired with a SIERRA3BDX riflescope, the onboard Applied Ballistics Ultralite calculator sends ballistic drop data via Bluetooth directly to the SIERRA3BDX’s BDX-R1 reticle, providing an illuminated holdover dot and wind hold. Download the free BDX App for iOS or Android to setup ballistic profiles and synchronize custom profiles to your KILO for exact ballistic solutions.