ACM - Tactical 4 Reticle Reflex Sight - Black is a lightweigh and low profile holographic sight which can be adjusted, allowing for four different sight pictures, as well as red and green modes. The sight is constructed entirely from Alloy, with a Glass Lens and comes with a 20mm RIS / RAS Mount Base. The sight features 4 red and 4 green settings, allowing you to adjust the brightness to the environment. There are four different sight pictures available to switch to via the rear lever: Dot, Cross, Circle Cross and Circular Dot. The sight is also 20mm based so you can fit it to almost any Airsoft weapon that hosts a 20mm R.I.S rail. Included is a soft lens cover for transport, instruction manual and adjustment tools.