These are factory new (not blems or rejects) 17-4 stainless steel heat treated to Rc 32-34.
At a minimum you will need to mill the rails, barrel bushing slot, and firing pin.extractor hole.
$80 shipped. e-mail me at: caspian45 (at) sbcglobal (dot) net
no PP, Money order only
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I have always wanted to do my own slide, but I have never seen how you do the barrel locking lugs under the slide.