Lucid 2x-5x Magnifier for HD7 and M7 Red Dot Sights and Flash Filter Kit BundleLucid Optics 2x 5x Variable Red Dot Magnifier Designed to mount behind any red dot sight, the Lucid Optics 2x 5x Variable Red Dot Magnifier brings targets closer and add precision to your set up. The 2x 5x Variable Red Dot Magnifier lets users transition quickly between a CQB operation to a designated marksman capability in an instant with the same weapons platform. With bragging rights as the world's first variable magnifier, this unit is essential