Made of AISI 4140.
The picatinny rail is of high quality material.
Made to last a liftime.
The rail is made to have as low profile as possible, for the lowest mounting possible of your scope.
The rail slides on to the existing dovetail rail on the Tikka action, and is secured with 4 screws (locking screws is optional – only required on 300 win mag and up)