Patent ID: 7743546

Claim:
A firearm adapted for use in low light environments, comprising: a firearm slide or receiver; a rear sight carried on said slide or receiver and including a surface defining a notch or aperture surrounded by an array of first, second and third elongated illuminating members arranged such that elongated side surfaces of the illuminating members are exposed to a user's view; wherein each of said first, second and third elongated illuminated members has an elongated central axis; said first, second and third illuminating members defining an array of elongated illuminated segments, and having a first horizontally aligned illuminating member positioned below said notch with a second vertical illuminating member positioned above and to the left of said first horizontally aligned illuminating member and to the left of said notch; said rear sight also including a third vertical illuminating member positioned to the right of said notch, above the first illuminating member; wherein the central axis of the third illuminating member is substantially perpendicular to the central axis of the first illuminating member, and substantially parallel with the central axis of the second illuminating member; and a front sight carrying a fourth illuminating member arranged on said firearm such that a surface of the fourth illuminating member is exposed to a user's view; said fourth illuminating member being sized to be perceived as fitting within said array of said first, second and third illuminating members when said front sight is aligned with said rear sight.