More rugged than two-piece grip/frame pistols, the one-piece SFX9 solid frame and X-Tac tread pattern deliver superior control, comfort and concealability. The SFX9 now comes standard with our RDS slide cover plate. Machined from 416 stainless steel, this cover plate gives your optic-ready Wilson X9 series slide a clean, factory-correct appearance. The plate allows easy access to your extractor pin without removal and features a windage adjustable rear Battlesight with U-notch for fast, accurate defensive shooting.