OTIS M4 SIGHT ADJUSTMENT TOOL - 2 PACK! Price $19.99 Add to cart Category Tools Manufacturer Otis Manufacturer Item Number FG-252BX UPC 014895006610 Description Reviews FEATURES:-Includes 2 M4 sight adjustment tools-Easily attaches to front sight post-Rotate clockwise to lower sight post; counterclockwise to raise sight post-Hear & feel the tool click