The Talley Modern Sporting (TMS) Ring is a solution for your Picatinny rail system with a clean and simplified appearance. These picatinny scope rings are designed to work with any rail designed to MIL-STD-1913 picatinny rail specs. Machined from aircraft grade alloy with a black anodize finish, the TMS Scope ring is gaining popular in the firearms industry as the next great, cost effective, AR 15 Scope ring.