The Forster Quick-Change Jaw Assembly LS-Large (028271-203) is engineered for reloaders working with the Forster Co-Axial reloading press. The spring-loaded jaw system contacts the base of the cannelure on cartridge cases to provide reliable case support. The LS-Large configuration accommodates .531″ to .625″ rim diameter cases, making it suitable for magnum and larger caliber cartridges.
Changing between different case sizes is straightforward with the Quick-Change Jaw Assembly. Remove the 10-24 x ⅝” Button Head Screws (028271-020) and install replacement jaws—no need to disassemble the Shell Holder Jaws, swap or flip sides, or reassemble components. The jaws are self-activating, opening and closing on the cartridge case when the press handle moves and automatically releasing the case when the handle raises.
Quick-change Jaws streamline caliber changes and switching between S and LS configurations, eliminate the risk of losing springs or misplacing jaws, and prevent installation errors such as reversing the wear plate. This assembly delivers efficient jaw swapping while reducing setup time and eliminating changeover mistakes.





