I believe they use the common 1911 thread dimensions, .150" - 50TPI, with length dependent on grips, standard normally .250" long threads.
Grip wise, much can be dependent on the holster, if natural/brown leather, these may look good... SIG SAUER 1911 SELECT G10 BROWN WITH SIG LOGO (cdnnsports.com) if using black leather, those grips wouldn't "clash" visually.
Hogue makes some nice reasonably priced Hardwood grips, but in most cases, it's best to choose them in person, as figure, and coloration varies between sets, and even individual grips.
Grip wise, much can be dependent on the holster, if natural/brown leather, these may look good... SIG SAUER 1911 SELECT G10 BROWN WITH SIG LOGO (cdnnsports.com) if using black leather, those grips wouldn't "clash" visually.
Hogue makes some nice reasonably priced Hardwood grips, but in most cases, it's best to choose them in person, as figure, and coloration varies between sets, and even individual grips.
