trayvon martin. one says he was doing what he was supposed to do. was he carrying it properly? >> properly, if i was ready to defend myself, you bet. >> reporter: he says this gun is designed strictly for personal protection, one of the cheaper guns on the market selling for between 300 and $400, ready to be concealed and ready to shoot. it's called carrying hot. >> you recommend to your students to carry this one hot? >> absolutely. >> reporter: because it has a safety feature, an extra long trigger pull that prevents accidental firing but watching this trained marksman, that's not all it does. -off missed. >> i know. it's not real tective. >> reporter: it's also effective in close quarters, something else noted. >> have you heard a prosecutor raise these points before? >> no, i have not.