These Kensight TRT 1911 Sight Set Trijicon Tritium Insert Night Sights will not fit a Springfield Ronin.
These Kensight TRT 1911 Sight Set Trijicon Tritium Insert Night Sights will not fit that 1911.
Yes, the Spartan uses and LPA sight cut.
Here is a reference sheet from the manufacture that will help determine compatibility https://stores.kensight.com/copy-of-lpa-trt-kensight-1911-sight-set-trijicon-tritium-insert-night-sights-with-rounded-blade-0-200-tall-front-sight/
No it will not.
We do not have the front sight in white, but we do have a very similar rear sight in white, made for the same dovetail style: https://www.opticsplanet.com/kensight-lpa-trt-1911-sight-white-dot-with-beveled-blade.html
No, this will not fit the Remington R1 because the R1 does not use an LPA/TRT dovetail cut.
No, this will not fit the Remington R1 Hunter because the R1 does not use an LPA/TRT dovetail cut.
No, this will not fit a Sig 1911 Target because that firearm does not use an LPA/TRT dovetail style.
No, these will not fit the Smith & Wesson SW1911 pro series.