Varying dot intensity. Red & Green dots allow you to keep both eyes open when shooting.Contact Left LTD Specialises in selling kit and accessories to members of the Armed Forces, Horse Riders, Fishing Enthusiats, Climbers, Campers and just about anyone interested in the outdoors. Contact Left LTD is now selling some of the world’s top brands. We currently have two shops, a large outdoor superstore in Formby, Merseyside and also at a UK Military Camp, these facilities allow us to stay in touch with the end user and ensure we are getting the best kit out there, we sell to everyone at the camp from Special Forces to Cadets.