Details on the lever mods…….

It's all done by hand. It would of been awful to video. But I should of taken pictures of the process...
You need soft jaws for a vise. By soft jaws, I mean smooth jaws, either mild steel or aluminum. I'll take a picture of it in the vise how I had it, but basically you clamp the portion of the lever that is against the stock, heat the loop up red hot, and use a smooth pry bar against the top of the vise jaws and pry up on the loop that's glowing.
It takes a while. Keep the other portions of the lever cool, keep taking it out and dunk the not heated side in water to slowly cool the rest of it. I'm not sure what its made from, but the lever loop is soft, so if it is heat treated, it's only the front portion that interacts with the gun.
Keep adjusting the loop further into the vise so you have the right amount of purchase with the pry bar. It's key to take your time and not go too far, otherwise the sides will look wavy. This took me about 12-14 hours just on the lever. Between the heating and prying, filing and sanding. Re-heating and prying the slightly low spots, and repeating.
Also, I will note. THIS IS ONLY POSSIBLE ON THE CURVED LEVER. If you try this on the straight one, you will end up shortening it and curving both sides. Not good. You could cut the loop on one side and bend it, then tig weld a piece in though.