Like everything else, the material specification has developed over the years, dictated by experience. The alloy that the barrels are made of has been upgraded to increase its strength and hardness and avoid distortion of the adjusting holes. The stud alloy has been upgraded to provide greater strength and ductility. The fittings are polished, stamped with our AA logo, assembled and then plated.
All plated fittings are made from a brass nickel silver base. These fittings can then be plated with a variety of metals.
