An open-topped turret was fitted as standard to the BA-64 series, with a 7.62mm light machine gun mounted on a pintle to the right.[2] The machine gun mount was designed for maximum elevation so it could engage low-flying aircraft or infantry in the upper floors of a building during urban combat.[1] A very small number of BA-64s were fitted with a 12.7mm heavy machine gun in a larger, open-topped turret.[3] This model included splash guards and armoured fillets on the hull roofline.[2] Personal crew weapons, such as hand grenades, were also stored inside the vehicle's hull.[2]