Not to be snitty, but the word would be "repro," not "repo." The guns are "reproductions," hence "repro." "Repo," without the second "r", is an abreviation for repossession, as in The bank is sending someone to "repo" my truck because I didn't make the payments. I am sure everyone here would want to be correct. I know I make mistakes too, but here's one we can change.