The CAA TPR15‑X6 Forward Rail (FR1) is a precision‑machined, anodized aluminum multi‑position barrel rail that installs ahead of the front sight on X6, X6L and TPR15X conversion kits. Its low‑profile design maintains zero retention under recoil while adding minimal weight, delivering rock‑solid stability for Picatinny‑style flashlights or lasers in any tactical application.