This work focuses on the properties of Cu-Ag alloys deposited by a cold spray process. Helium was used as the carrier gas and main gas to reach particles velocity of 823 m/s, which is in the middle range of the deposition window for Cu alloys. A closed loop circuit avoiding costly helium losses was implemented. Thus, deposition efficiency higher than 95%, porosity below 0.1%, and oxygen content below 150 ppm were obtained. The influence of the deposition parameters on microstructure, mechanical properties (ultimate tensile strength, yield strength, elongation, hardness), and residual stress level in the material was studied. Intensive work hardening mechanisms are involved by comparison with classically forged material allowing a large tailoring of the material’s properties through specific heat treating.