I know this question belongs in the cleaning section but I get an error message for some reason. Anyways here goes my question. I need to know what caliber bore and chamber brush I need for my AK-103 in 7.62x39. The cleaning kit that came with the rifle the brushes do not have threads on them so I can't put them on the rods. So I figured I would go up to Wal Mart and buy some knew ones. But I figured the brushes would not be labeled for 7.62x39 or AK47. Thanks for all the help.

.308

A 9MM brush works for me.....

Any brush that is about 30 cal will work fine.