Made in America, these Winchester XPR Scope Mounts made by Talley Manufacturing offer a unique and simplified one-piece scope ring and base solution for Winchester XPR Rifles. This simplified mounting system eliminates the possibility of an out of alignment interface or loose connection between the ring and base of traditional two-piece designs. Ultimately this provides more strength and durability than rival steel rings and bases, but with a lighter overall weight. Fully CNC machined from lightweight aircraft-grade aluminum to the industries tightest tolerances, this rigid scope mounting platform requires no lapping and is ready to go out of the box. Mounts to receiver with 8-40" length screws.