No they will not.
Please reach out to the manufacturer for that information. https://stores.kensight.com/contact-us/
Unless your Combat Commander has a BoMar slide cut it will not fit.
Please contact us at techsales@opticsplanet.com as we will need more information about your 1911 to determine fit.
No, the Colt Delta Elite chambered in 10mm features a Novak cut.
No, that pistol uses the LPA/TRT sight cut rather than the BOMAR cut (they look almost identical but have some small yet key differences). You would need this set instead: https://www.opticsplanet.com/kensight-lpa-trt-1911-sight-set-trijicon-tritium-insert-night-sights-with-rounde.html
That will depend on which sight your gun came with. Some models of the Gold Cup Elite had a thinner Eliason that was in a parallel groove (lengthwise) cut into the top of the slide. These will not work with that sight cut. If you have the newer BoMar MBCS style that has a horizontal dovetail (across) cut into the slide, these should work.
No, the Springfield Range Officer uses LPA/TRT sights rather than Bomar sights. They look almost identical but the sight cut is a bit different.
No, while Ruger uses a couple different sight styles on their 1911 pistols, they do not use the Bomar/BMCS sight cut on any of their pistols. If your gun has an adjustable rear target sight, it is most likely an LPA/TRT sight (looks almost identical to Bomar), otherwise it is most likely a standard Novak style sight.