Now if Tru-Glo would just....(Sorry? Everyone's used to my ranting about them NOT making a F/O with Tritium insert for S&W guns)
Till then.....
Novak Fiber Optic Sights

www.dawsonprecision.com SIGHTS FRONT:Smith & Wesson Category

Were I doing it, I'd go the Novak Wide Notch rear (plain black) and your favorite color choice up front.