The advanced development and characteristics of a new high resolution, high frame rate, reflected mode MOSLM is reported. This effort is aimed at the production of Miniature Ruggedized Optical Correlators. The device research and process development is being performed at Carnegie Mellon University NSF Data Storage System Center (formerly Magnetic Technology Center) under contract from Litton Data Systems. Pixel size is under one mil center to center, one third the dimension of present transmission mode evaluation devices. This development includes optimization of the optical and functional characteristics of the MOSLM for Mil Spec Systems.