Sig Sauer Buckmasters, Rangefinder, 6X22mm, Red LED Display, Black Color SOK15601 The Buckmasters Rangefinder was inspired by Jackie Bushman to bring the performance of SIG SAUER Electro-Optics at a value that is within reach for every hunter. The rangefinder will provide lightning-fast ranging performance in a vivid red-illuminated display optimized for low-light hunting. As an extra value, the rangefinder can be used in "Buckmasters Mode" which comes equipped with 8 onboard ballistic groups, so the rangefinder can indicate which Buckmasters BDC holdover dot to use in your Buckmaster riflescope.