Good Luck on the Milling and install!
Optics are now becoming more prevalent.
Have been considering an optic for one or two of my striker fired Pistols.
Lol. I didn't realize they were so huge when I posted.
Any way you can fix that? Takes forever to scroll thru them.
In the past I used to use Adobe Photoshop to resize my Pics.
These days I plan to use either Photoscape X or Picasa, both are available as free Apps.