The Leupold steel Standard (STD) rings and bases stand out as the most flexible mounting system within our product range. Tailored to fit the Browning A-Bolt LR, this particular variant is ideal for standard calibers below .300 Win. Mag. STD rings are available in five distinct heights and boast meticulous engineering to seamlessly align with either the STD 1-piece or 2-piece bases. Notably, the front dovetail ring is adjustable, enabling lateral tweaks via the rear windage screws during bore sighting.