The mags arrived in a plastic bag with a light coat of cosmoline. After cleaning they looked brand new. I ordered three and none worked properly out of the box. The lip on the mag was either sitting too high or too low of the slide release. I had to bend the followers appropriately to get them to work. After that, they seem to be good to go. Still have yet to shoot them

put 50 rounds through it today first mag shot had a fail to feed on 2nd to last bullet but after that the rest fed great !!! it was a great buy and good fast shipping !!