Hey Guys,
Another member on here gave me the idea on this mount, Thanks! I have an M4 and use a 2 point VTAC sling and really wanted the same set up on my Thumper when I'm out deer hunting. So I got the IWC mount, drilled a hole and installed on the forearm. Seems like a great mounting solution to avoid having to remove the gasblock and purchasing a new rail.
Here are some pics: