I see three solutions to iEra's gun problem:
1) Full reset. This would be the best course of action, but players would utterly RAGE and RIOT. The would provide a chance to start fresh and learn from mistakes, but as I said, this would not go well with any and all players.
2) Close the server for about a week; remove rec and sam; have Cloyd, Masa, Wil, and Meph come in and fix all the guns and re-price. This would be another great solution but players, of course, would rage.
3) Play Era on your computer. This is the most simple course of action. Simply play Era PC! Very little gun problems are had here. If you work for your gun, then you will get it. Simple as that. The more you work, the better gun you'll get.