Sold, and props to cbhausen for finding possibly the cheapest way to get a new MRO. https://jet.com/product/Trijicon-1x25mm-MRO-20-MOA-Adjustable-Red-Dot-Sight-Black-MRO-C-/66f149c1402145d7a4ec6eaf53542b63
After the 15% off (TRIPLE15 code at checkout), the total price for the MRO is about $386.