10/15 Hellcat Pro 9mm Magazine comes with open retail packaging. A magazine block has been installed, to only allow 10 rounds in the magazine. The floor plate will be glued.
NOTE The 10th round might be hard at first to get in. If so, the magazine block just has to be worked in under pursue. Load 9 rounds and let it set for a few days, after the 10th round then can be loaded. All magazines have been tested using this method and will work after.