This is my first time in the "Vintage" section, so forgive me if this has been discussed. I recently broke out my vintage collection and realized I am missing some weapons/accessories. I see online at several sites that there are "repro" weapons for sale, most often at quite a cheaper price. I was wondering what the difference is in the "repro" weapons, and if one can tell a difference between authentic weapons and the reproduced ones. Any help would be appreciated!