Slide Finish - Gas Nitride Coating Sights - Steel White Dot Front / Steel Serrated Black Drift Adjustable Rear This kit includes all components needed (MINUS BARREL / RECOIL SPRING ASSEMBLY) and is covered by our Limited Lifetime Warranty. For any other questions on warranty click link below. Â This kit includes all components needed (MINUS BARREL / RECOIL SPRING ASSEMBLY) and is covered by our Limited Lifetime Warranty. LIMITED QUANTITIES. DUE TO DEMAND FOR PRODUCTION OF FIREARMS, THIS ITEM MAY BE OUT OF STOCK FOR EXTENDED PERIODS.