Mec Ez Prime For 28ga. Models 600 Or 700. The reloading screen is a single piece of plastic that easily snaps into the frame and has a molded in O-ring to keep it from slipping while in use. If you have ever tried to reload with out it you know the feeling of having to make something from nothing. That is why at MEC we make everything from start to finish with the idea of giving the reloader the best chance to succeed. We are so confident that like our other products our primer reloading screens are among the very best the reloading industry has to offer. Because of this MEC has them all covered with great customer support along with great products to help get you started. Specifications for Mec Ez Prime For 28ga. Models 600 Or 700: Type/color: Black & silver Size/finish: 28 gauge Material: Plastic & steel Other features: Fits single stage loaders models 600 & 700 Package Contents: Mec Ez Prime For 28ga. Models 600 Or 700 The Mec Ez Prime For 28ga. Models 600 Or 700 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.