It's strange that when a gun gets removed the people who bought the gun still have it
Rilisoft doesn't want to refund us for removed weapons for whatever reason (I'm personally glad they didn't), so they just let whoever bought them keep them.
Except for the Lucky Strike. It is the only gun entirely removed from the game. People who bought it before no longer have it, and they didn't get a refund. Also, I'm glad they didn't completely remove the weapons (some people still have at least one removed weapon).