Hornady Quick Detach Reloading Mounting System, For Lock-N-Load Presses - 399697 The Hornady Quick Detach Universal Mounting Plate Assembly allows the user to easily attach and detach Hornady reloading tools and accessories. Great for a limited workspace, the Quick Detach system features aluminum mounting blocks for a strong clamp and extreme stability. Cam lock clamps secure the plate with reloading equipment attached to the base.