I have a S&W M&P Shield 2.0 with the manual safety. The stock S&W safety is virtually unusable. So I found a source who sold me a TIG-welded extended safety. Now that safety looks and functions exactly as the safeties on my Compact-sized Smiths.
FYI, Brian Beard<
[email protected]> was the seller. About $71 shipped. I did the install in about 30 minutes after reviewing a couple of YouTube videos.
Here are pictures: