This Trijicon standard colt-style thumbscrew flattop SRS mount for 1913 or STANAG 4694 Picatinny rails is made from 7075-T6 aluminum.

Specifications and Features:
Trijicon SRS Flattop Mount
Colt style thumb screws
Compatible with Picatinny rails
1.612" from mount surface to optical axis
4 oz
7075-T6 aluminum
Black

Fits:
Trijicon SRS