The Fast Mount features a simple, ergonomic and stylish design with 11 layer multi-coated lenses providing a clear image. The red and green reticule illumination is controlled by the side Rheostat with 5 brightness settings for each. This model features an adjustable objective to correct parallax error. The magnification and AO ring have been improved with smoother operation and improved grip and a new better quality fast-focus eye ring has been used. Supplied with free 9-11mm ring mounts included.