The new VX-3L combines great low-light performance and the revolutionary Light Optimization Profile, so you can mount this 50mm scope as low as a traditional 36mm scope. The Xtended Twilight Lens System offers a greater, brighter vision of details in low-light situations. The DiamondCoat 2 lens coating creates a dramatically sharper image, while also providing the highest level of scratch resistance Leupold has to offer. The Ballistics Aiming System helps you get more accurate shots. Built-in tactile power indicator and range estimation let you adjust for windage and elevation without extra equipment. The blackened lens edges reduce light diffusion allowing more light to reach the shooter's eye, resulting in greater contrast and brighter images. Second-generation waterproofing, twin bias spring erector system, and cryogenically treated adjustments for increased accuracy. Each riflescope comes backed by Leupold's full lifetime guarantee.