Can anyone give me a heads-up on a new series 80 Colt 45 acp slide w/ dovetail front and Bo-Mar back sight cuts. The only thing I haven't replaced on my pistol is the slide,barrel and frame. Everything else is either Wilson or McCormick. Want to replace the slide , then the barrel. Ay help would be appreciated. Thanks.

What are you trying to accomplish with a slide, then barrel swap?

Also, if you want to replace the slide, it'll need to be 'fit'. These are not 'drop in' parts, and if they are, they're shit. The barrel will need to be fit to the slide as well. So, doing the slide, then the barrel isn't very practical.