Great riser - GBRS Group Hydra V2 Red Dot Sight Red Dot Sight Mount Kit

If you’re short on rail space, this is a great solution. I like the height of this riser. This may not be for everyone, but it works well for me. The machining, manufacturing, and even the box it comes in are all very well made and thought out. This new version 2 is better than previous model including holes for tools to fit in, larger opening for connections etc.