Replacement front sight post uses a light-gathering fiber optic rod to produce a bright, easy-to-acquire dot in all light conditions. Easily replaces the post in A1- and A2-style sights, no gunsmithing required. Unique, U-shaped design of rod gathers far more light than a standard straight rod, perfect for low-light situations. Kit comes with two green and two red interchangeable rods that are easily removed and installed using the included removal tool, so you can customize the sight picture or replace a damaged rod quickly. Fully adjustable in 180° increments using supplied sight wrench, for a total elevation adjustment of up to 2.5' at 100 yards. SPECS: Black steel post with 2 green and 2 red fiber optic rods. Includes replacement detent pin, sight wrench, optic rod removal tool, carrying case, and instructions.