The Konus Fighter 4-16x50IL BDC W/RNGS rifle scope is a variable magnification scope with a 4x to 16x magnification range and a 50mm objective lens. It features an illuminated reticle and is designed for long-range shooting with an included cantilever mount and ring set. Product: The Konus 7349 is a Fighter 4-16x50IL BDC W/RNGS rifle scope. Magnification: It has a variable magnification of 4x to 16x. Lens: The objective lens diameter is 50mm. Features: Illuminated reticle (IL). BDC (Ballistic Drop Compensating) reticle. Comes with a cantilever mount and rings (W/RNGS). Mount: The included cantilever mount is designed to provide a better sight line by allowing for easy adjustment of the scope's position.