It took some reshaping with my dremel but it works very well now on my MI T12 hanguard. For those of you who have midwest handguards I am pretty sure you will have to do some sanding on the inside of the curves so it's not putting tons of pressure on the sides of the hanguard above the bottom rail. All in all it works great and I highly recommend!!!
Just make sure you don't get to happy with a dremel if you use one.