Soon to be released by Lucid Optics is the enclosed E7 Red Dot Sight that can be used on pistols as well as carbines... "True to Lucid Optics mindset, we believe that “Overkill is Overrated”. With the introduction of the E7 red dot sight, we are bringing an optic to market that will manage both pistol and carbine applications in a whole new level in durability.