HOLOSUN ARO-EVO ENCLOSED SPR 2 MOA RETICLE RIFLE SIGHT W/HM3X ARO-EVO is the ARO (Advanced Rifle Optic) EVOlved. ARO-EVO features an all-new 26mm housing design that offers a larger sight picture providing the user with more information for improved performance shooting along with their new lower 1/3 co-witness pedestal mount. The newly designed housing mates perfectly with their magnifier series and includes a new lens cap and anti-reflection device system. Additionally, AROEVO is available with their new Special Purpose Reticle (SPR) which is a bullet-drop compensating and ranging reticle which balances the performance of a 2MOA dot with accuracy at intermediate distances. ARO-EVO Mfg: Holosun