i need help with PSU!?

[xxdeadlyjuggaloxx]

i was in psu (phantasy star universe) and i was selling one of my 10/10 weapons and this guy came to me and sent a trade to me to buy it, when i put up my weapon and exact clone came up on his side of the trade, and it was a clone beacuse it had the same PP left over like mine
can i wanted to know if anyone knew how to do it