These Thompsons Center Scope Mounts made by Talley Manufacturing offers a unique, simplified ultra-light one-piece scope ring system for Thompsons Center Encore, Impact, Omega, Triumph and Pro Hunter. 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.