Scope rail looks better. Can you trim down a bit of the rear sight to get the rear a bit lower? It's a bit like it's got a downward curve, instead of an upward curve now.
The MTK shins are (were) very thin. I didn't discuss it in a lot of detail in my thread, but I gave them a good soaking in boiling water to reshape them a bit, but I also added about 10mm of ABS to the rear (is hidden by the cover strip) to give me a bit more material to bend around. It did help quite a bit. You can just see the faint line running toward the drilled hole in this pic.