Metal matrix composite is widely used in automotive industries because they exhibit different mechanical properties such as high strength and good wear resistance, high specific stiffness, low weight and high hardness etc. Due to these properties metal matrix composite with particulate reinforcement and fabricating, the method has become one of the most important areas of research. The work is mainly focus on fabrication of Al 6061 reinforced with 4% B 4 C (particle size 100 mesh) & 4% Cu and method used for fabrication is stir casting method. Tensile strength, hardness, impact strength, microstructure of fabricated composite are used to characterize it. By addition of B 4 C & Cu tensile strength and hardness of the fabricated composite has increased and slightly decreased in impact strength. Scanning Electron microscopy is used to confirm the microstructure and uniform distribution of B 4 C & Cu particles in metal matrix composite. The value of tensile strength increase up to 20% and hardness increase upto15% due to addition of B 4 C & Cu paritcles.The physical and mechanical properties of the composite are improved so it can be used for automotive industrial applications.