This is a replacement rail for the TAR-21 airsoft gun, I'm using a model made by Umarex but they should fit all of them.
The back rail replaces the rear iron
...Zeig mehr sight, this can be removed by one screw in the center and this part is attached the same way, there are two files for this, the one listed as Tall should fit the default rail height.
The other file is for the CNC Aluminum rail set from evike.com which I am using on my gun and is a bit shorter.
