Talley Blaser modular rail set machined from 7075 T6 Alloy that has been hard anodized. Set includes saddle mount that goes on the Blaser barrel along with four interchangeable rails. This includes three various Picatinny rails (0, 20, & 30 MOA) as well as a base compatible with standard Talley rings. Talley Manufacturing Talley Modular Rail Set for Blaser Rifle with Interchangeable Rails, Base and Saddle Mount Included TALBLA