Mec E-Z Prime Automatic Primer Feed For Progressive Loaders. This company strives to offer novice and seasoned reloaders the same level of service with the goal being to enhance accuracy and performance. The EC Primer 650 is an excellent product used for high-volume reloading. With this every session is maximized. This primer is made for Progressive presses and includes a plastic tray with metal brackets. In addition the product is backed with a solid company guarantee. Automatic Primer feed for 650. Grabber and Hustler Package Contents: Mec E-Z Prime Automatic Primer Feed For Progressive Loaders 385CA The Mec E-Z Prime Automatic Primer Feed For Progressive Loaders 385CA 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. Mec E-Z Prime Automatic Primer Feed For Progressive Loaders