Good used is fine, I don't need new.
ETA: Numrich, Brownells, Midway and S&W are all out of stock with backorders into early 2015.
I was hoping to get some sooner than that but I'll wait if I have to.
I have a little pile of rear sight blades and this one is made differently than any other I've seen. It looks to be one piece that was stamped and then folded over on itself. You can see the seam in the second picture.
Is this factory or aftermarket?
Were your balljoints "lubed for life" or were they greaseable?
Greaseable balljoints last much longer (when properly maintained) than the "lubed for life" type in my experience. I've had some go over 175K. I've had some that were "lubed for life" that didn't see 100K.