The study focuses on studying the gamma-ray shielding performance of Al-Cu-Pb-Zn alloys, with an emphasis on their mass attenuation coefficients (MAC), half-value layer (HVL), and mean free path (MFP) in comparison to theoretical values. The study utilized three different alloy compositions: A1 (Al67Cu23Pb1Z9), A2 (Al67Cu23Pb2Z8), and A3 (Al67Cu23Pb3Z7), adjusting the proportions of aluminum (Al), copper (Cu), lead (Pb), and zinc (Zn) to assess their impact on gamma-ray attenuation. The findings indicated that the mass attenuation coefficient of the sample A3 was high (0.825 cm2/g) at 60 keV due to its increased lead content that made it have dramatic radiation shielding efficacy. Conversely, sample, A1 recorded the lowest mass attenuation coefficient (0.072 cm2/g) with a radiation of 662 keV. The mass attenuation coefficient was found to decrease gradually with increase of photon energy where Compton scattering becomes ineffective at higher energies. This pattern was not different to the theoretical prognoses attained utilizing the XCOM software to underscore the authenticity of the experimental setting. Besides, the HVL and MFP showed the negative correlation to the mass attenuation coefficient, and the greater concentrations of lead led to lower values found and indicated the increased shielding at decreased material thickness. The agreement between the experimental and theoretical calculations was quite high and particularly, in the immunological levels and mean free path, hence these alloys can effectively be used in gamma ray shielding applications. Also X-ray diffraction (XRD) and scanning electron microscopy (SEM) results showed the presence of different phases and elemental composition of alloys with the reason that they have radiation protective potential. On the whole, the results indicate that Al-Cu-Pb-Zn alloys, especially those with a larger amount of lead, have a viable possibility of use in radiation shielding.