Nice looking mount. - SLR Holosun 503C Absolute Co-Witness Mount

So i really like co-witness sight picture and the Holosun 503c mount is a 1/3. So i was stoked to get this mount. The mount is well made and looks pretty cool. One of the two draw backs that make it 4 stars instead of 5 is that you cant remove the mount without removing your rear sight. Second draw back is that it says its made for the 503c but it dosn't fit totally flush on the edges like the mount it comes with. Not a huge deal but looks wise that hurts a little...Otherwise I like the mount and will use it for the foreseeable future.