The NcStar 3 Rail Reflex 1x26mm Weapon Sight - Red, Blue, Green D3RS135 is an advanced generation of modular tactical sighting systems. This Red Dot Weapon Sight from NCSTAR encompasses a Dot Optic that allows the shooter to mount different accessories in conjunction with the sight, for quick and easy access. The three accessory rails on the NcStar Dot Optic D3RS135 RGB Weapon Sight permits the mounting of a targeting laser or a tactical flashlight directly on the sight. This NcStar Red Dot Sight will fit virtually any Weaver or Picatinny rail. For a great sight that will never let you down in the field, choose the NcStar D3RS135 Red, Blue and Green 3 Rail Sighting System.