The B&C Medalist (full length aluminum bedding block) stock will fit your barreled action. You'll likely need to open the barrel channel slightly for the larger diameter .458 barrel. They make two models both with the sweep back commercial style factory bolt handle,. One model is for the original Mauser wing safety or the Win M70 wing safety. One model has the sliding safety cutout. Download their catalogue and you can identify the correct model # for the Zastava side safety - unless you intend to change it.