Forster Products Quick Change Jaws "LS" SM

The Forster Products Quick Change Jaws LS SM is a drop-in upgrade for reloaders running the Forster Co-Axial press who need to swap between small and large case sizes without the downtime of tool changes. This LS (Large-Small) assembly holds rim diameters from .312" to .375" on the small jaw and .531" to .625" on the large jaw—covering everything from compact rifle rounds through magnum cartridges and large-capacity cases. If you're working multiple calibers on the same press, the quick-change system cuts setup time and eliminates the risk of losing or mixing up shell-holder components.

The jaws themselves use spring-loaded contact at the case base to grip each round securely as you work, then release automatically once the press cycle completes. Swapping between small and large sets is fast and tool-free—just remove the current jaw assembly and clip in the other. There's no fiddling with springs or worrying about installing parts backward; the design only goes together one way, so misassembly is impossible.

If your reloading bench handles a wide range of calibers or you're scaling up production, this quick-change jaw system pays for itself in time saved and mistakes prevented. It's a smart addition to any Forster Co-Axial press setup.

Key Features

• Drop-in assembly for Forster Co-Axial press—no modifications needed
• Covers rim diameters .312" to .625" with small and large jaw options
• Spring-loaded jaws grip cases securely during loading, release automatically
• Tool-free, one-way design prevents backward installation and component loss
• Fast caliber swaps without disassembly or adjustment

Specifications

Frequently Asked Questions

Will this fit my Forster Co-Axial press?

Yes—the Quick Change Jaws LS SM are designed as a direct upgrade for the Forster Co-Axial press. No modifications or special tools are required for installation.

What case sizes does the LS SM assembly cover?

The small jaw handles .312" to .375" rim diameters, and the large jaw covers .531" to .625"—giving you a broad range suitable for most rifle and magnum cartridges. If your calibers fall outside these ranges, you may need a different jaw set (such as the S-Small or S-Large assemblies).

How do I swap between small and large jaws?

The jaws are designed for tool-free, one-way installation. Simply remove the current assembly and insert the other jaw set; the design prevents backward installation and component loss during the swap.

Can I lose springs or other parts when changing jaws?

No—the quick-change system is engineered to avoid disassembly of springs or small components. Swaps are fast and all parts stay together as a unit, eliminating the frustration of misplaced pieces.