Maydaysan Airsoft recommends this optic if you want an ACOG for airsoft use. The SPECPRECISION Optic Fiber 4X32 CHEVRON Reticle Riflescope is a prism scope featuring true fiber optic illumination with your choice of Horseshoe Dot, Chevron, or Crosshair reticles. It also includes an integrated iron sight, an eyepiece flip cover, and a killflash. Unique among fiber optic scopes, the SPECPRECISION model offers a fast focus eyepiece with adjustable diopter settings, making it an excellent choice for shooters with nearsightedness.