915 AKA OP...............

The 915 is one of my favorite Smith autos..... I found one in a LGS in alittle better shape than your's ..... story was, a Security Guard/Armored Car gun...... I cerakoted the frame in a titanium gray to get a two tone look...... $75.

Also, IIRC, Mec-gar is still selling 17round mags for the 59xx/915 guns. Only mags I use other than factory.