That's a very clean one. And if it stays healthy for a while you got a great deal.
Although those early-gen 150 sights are very SIMPLE and only windage adjustable, every one I've owned has shot to point of aim well at about 10-25 yards (virtue of being mounted SO close to the bore). And the sight-picture is among the best iron-sight picture I've used at any price, virtue of the sharp and undercut front sight combined with the convex top of the rear sight.
GREAT SCORE! Congratulations.