FORSALE ; HOPPE'S .36 DOUBLE BARREL .36 CAL. DERRINGER. SMOOTH BORE.36 CAL. DOUBLE HAMMER SINGLE TRIGGER. WORKS PERFECTLY.IF YOU LOOK AT HAMMERS YOU WILL SEE I HAD FIRE IT TO SELL . HAD BEEN LOADED FOR YEARS. BOOM FIRST TRY. HAS BEEN CLEANED. $275.00 PLUS SHIPPING I THINK IT WILL FIT IN SMALL PRIORITY BOX.