WE Europe - WeTech 883 Holographic Sight - FDE is an Airsoft 20mm RIS / RAS Rail Compatible Sight, built and designed to be a replica 883 Holographic Sight. The Sight is constructed with an Alloy Body and Cover, with a Polymer Battery Housing. This style of Sight is designed for fast target Acquisition in the field, as once zeroed the sight can be looked at from odd angles and will be on target, meaning that as you raise your Rifle you can start acquiring your target ready for that first shot. The Sight is powered by two AAA Batteries, meaning that battery can be purchased at any Retail Store should you find your Batteries dead on the way to a Game Day. The sight features an adjustable Green / Red Reticule and can be adjusted for up to three Brightness Settings, meaning this sight can be used both indoor and outdoor. The adjustment buttons for the sight are located on the back, meaning easy access whilst in the prone position. The sight is attached to 20mm RIS / RAS Rails via a Quick Detach Mount, meaning the sight can be quickly attached or removed in seconds without the use of tools in the field. This sight is perfect for any Airsoft Skirmisher who needs a sight for their weapon, be it for either Indoor or Outdoor, and is a perfect all-rounder for any weapon.