XS Sights Standard Dot Tritium Express Set for Smith & Wesson 586/686/625/629/329 Revolvers, Includes Tritium Front/White Stripe Rear Sights XS Sights Standard Dot Tritium Express Set for Smith &amp; Wesson 586/686/625/629/329 Revolvers, Includes Tritium Front / White Stripe Rear Sights