It's a five screw if you count the one in front of the trigger guard. My father carried it in Vietnam and later as Trooper in the 70's. It's made 100's hunting trips as a side arm and I've taken a few deer with at close range. It's not in perfect shape but it's got lot of history. I was thinking about sending it S&W to have it brought back original cond. I also included his Bowie he carried with it and a Mod. 29-3 in 6". Click on the pic. to enlarge.