I guess you could but that'd be a lot of work. The rail doesn't just sit there or clamp on top of a flat piece underneath, it has cutouts and carefully measured holes because under the rail is the barrel retention screws up front and in back screws for the lever. These screws have kind of "posts" they sit in that the rail aligns with. I'm not a machinist at all but that seems like more work to me than $40 lol
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this website please ignore the red circle
If you end up doing that, I'd love to see it though!