Capitalizing on the phenomenal popularity of the AR-15, Leupold have produced a line of scopes designed for AR-15 hunting rifles.
Mark AR 1.5-4x20mm
The Mark AR 1.5-4x20mm model is a light weight scope allowing a wide field of view at the 1.5x zoom, while giving the option of 4x zoom for longer shots. The disadvantage of this scope is the poor low-light performance from the 20mm OA (objective aperture).
The Mark AR 3-9x40mm is your standard 3-9x40mm scope but with pre-engraved bullet drop compensation on the elevate adjustment dial for a 55 grain .223/5.56mm NATO load.
More info here.
Hat Tip: Shooting Wire