This Project investigates the mechanical properties and micro structural& surface roughness behavior of Metal Matrix Composites prepared using Al7075 alloy as a matrix, Zinc and Chromium as reinforcement particles. Micro structural analysis, mechanical and surface roughness behavior were used to evaluate the performance of the composites. Uniform distribution of reinforcement particle was observed through optical photomicrographs. Vickers micro hardness tests were performed and the hardness values were increased with an increase in reinforcement from 0 to 15 vol. %. By Archimedes principle, the density was calculated.