Mec Grabber Primer Catcher. The GC primer catcher has been specifically designed to fit the majority of popular automatic and semi-auto presses on the market today. The GC primer catcher effectively catches and retains primers for later use particularly when automatic presses are used as one of the reloading press options. This product has been designed to fit the majority of popular automatic presses on the market today. This product has been created to fit the majority of popular automatic presses on the market today. This product has been created to be used in conjunction with the MEC primer catcher base for loose incorporation into the reloading process. In the event the primer catcher base should break or chip the MEC primer catcher for being too heavy to remove even with the aid of a large die a case catcher base or case re-sizing die. Specifications for Mec Grabber Primer Catcher: Manufacturer: MEC Additional Features: Black Fabric/Material: Plastic Package Contents: Mec Grabber Primer Catcher The Mec Grabber Primer Catcher is a quality addition to the MEC lineup. For more great deals on Press Parts & Accessories by MEC please browse our Mec Reloading Equipment page.