NECG Classic Express Rear Sight Island Base 1-Leaf Large .730 to .830

NECG Classic Express Rear Sight with Island Base. Steel blue blued rear sight base for AR-15 rifles. Includes 1 standing leaf and up to 3 folding leaves, each taller than the last. Blades are flat to allow for customization with a V or U notch. A clamp screw locks the folding leaves in the upright position for use. Available in a variety of barrel diameters to fit any gun. Specifications: - Width of base: 0.550 in - Standing leaf height: 0.670 in - 1-Leaf height: 0.650 in - 2-Leaf height: 0.670 in - 3-Leaf height: 0.709 in - Small diameter range: 0.600-0.675 in Finish: blued steel