Why invest in a riflescope and then attach it to your rifle with a substandard mount? Leupold`s mounting systems are as rugged and reliable as the Leupold riflescopes they`re intended to secure. No matter which mount you choose, you can count on it for rock-solid dependability and tack-driving repeatable accuracy. These bases are extremely affordable and exceptionally well-made.Images, photographs, etc. shown do not necessarily represent the product in its entirety. They are shown for examples only.FEATURES: STD 2-piece bases are engineered to match up with STD rings. Machined steel construction. Versatile, available for many different rifles. Forward part of base accepts a dovetail ring, locking it solidly into position. Rear ring is secured by windage adjustment screws. STD 2-piece bases offer maximum accessibility to the breech area of your rifle. STD 2-piece bases fit right and left-hand actions and reversibile bases are available for many actions. Five-different ring heights are available for STD bases..