TruGlo Tactical 30mm 3-9x42mm Illum BDC Reticle Riflescope, Black – TG8539TL. TruBrite 30 Series offers the perfect combination of clarity, precision, and speed. It provides a bright image and extremely wide field of view. Shooters can utilize an extremely fast sight picture and even take the shot with both eyes open. It utilizes two removable BDC target turrets and a scope mount. This model has an illuminated duplex mil-dot reticle with 3-9x magnification and 42mm objective lens. BDC can be calibrated to most. 308 cartridges and accommodate targets up to 600 yards away. Scope includes two removable BDC target turrets in calibers. Reticle can be used in black without illumination. Includes one-piece 30mm rings / scope mount.