This Korth speedloader is designed for the fast reloading of your Korth .357 Magnum revolver. Made of lightweight aluminum, this speedloader can be easily opened or closed with the turn of the handle. This model will also accept .38 Special ammunition. For use with all .357 Magnum Korth 6-shot revolvers manufactured from 2016 to present. Also fits Smith & Wesson 586, 686, 581 & 68 models; Ruger GP100 models; and Colt Python models.