Welcome!

Truth told the R51 was never actually "recalled" this is a PR move on Remington's part but it comes more from the design of the gun itself not being "unsafe" but rather that certain guns once assembled did not behave as expected.

If your gun is running and shooting well, consider yourself lucky for having received one of the good ones and keep shooting it.

As for the action spring bushing getting scratched during use, this is totally normal. So much so that later guns actually shipped with a small insert that pointed this out as a possibility as well as calling special attention to the proper method with which to reinstall the slide stop.

Hopefully it's something they fix with the relaunch of the gun, those scrapped up bushings never looked good to me.

There are no officially licensed R51 threaded barrels. They did have one on an original shot show sample that was mated to an AAC supressor (A Ti-Rant 9 I believe) but this was never officially made.

Hello,
Figured I'd join the site and share some of the R51 knowledge that I have gained over the years. It's easily on of my favorite pistols to shoot.