Warne V488M Winchester XPR SA Vapor Picatinny Rail Black | Warne Vapor Rails Are Designed To Offer Shooters An Affordable And Reliable Mounting Platform manufactured For Your Specific Firearm. Zero MOA Rail. Fits Picatinny & Weaver Style Rings And Are Nato-STANAG Compatible. Designed And Made In USA. Model: Winchester XPR SA Vapor Picatinny Rail Material: CNC Machined 6061-T6 Aluminum Action: Short