When it comes to 17-4Ph shafts Salvimar Italy are experts. Their latest generation Capture shafts use the highest quality 17-4Ph spring stainless steel material. These shafts are computer controlled through a process to straighten, finish and harden the shafts. With Laser welded fins which use MIM technology these fins are smooth and solid ensuring a solid loading bridle. The low profile fins will fit through most muzzles and be a fantastic upgrade for any gun. The 17-4Ph spring stainless material is very durable and corrosion resistant. 7mm is the perfect all round shaft for spearing around Australia. The shaft will fit any gun with a european notch design. This shaft is a factory option in: Salvimar hero Salvimar metal roller