Lyman 16B Folding Leaf Sight Height .345 - .445, 3161067This open rear sight with adjustable elevation blade, is the perfect auxiliary sight for scope-mounted rifles. The white triangle makes sight alignment fast. This popular sight folds close to the barrel when not in use. Designed to fit 3/8" dovetail slots. Leaf adjusts from .335 to .445. Height measured from bottom of sight to notch in leaf.