Using broadband magnetoresistive sensors, Quantum Magnetics is developing a metal detector for landmine/UXO detection and discrimination. When completed, this active system will be incorporated into a passive man-portable gradiometer system being developed under funding from the Strategic Environmental Research and Development Program. The resulting system will be a handheld passive/active magnetic tensor gradiometer detector capable of detecting, locating, and discrimination buried targets. In this paper, we discuss these developments and recent results.