The magazine catch is also not. Replaced the mag catch on my Kimber with an oversized one, no problem. Decided to put the Kimber catch in my Daly since the button is a little longer. No can do. The tab on the mag catch lock is a little closer/farther away from the end of the catch, don't remember which but it's different. Stock/aftermarket mag catch won't fit.
so firing pin, firing pin lock, extractor, ejector, would all be interchangeable with colt or wilson's would also fit? handle screw bushings aren't particularily relevant. mine is fs model built in early 2000. thanks