You will need a12b mounting plate
Yes, the CCW is a RMSC and the ST is a Deltapoint PRO
Yes, the Vortex Defender-CCW Enclosed is a direct fit option for your P365. No optic plate would be required for installation.
No, the RM1C is designed to fit optics that utilize the Trijicon RMR footprint. Compatible optics include the Trijicon SRO, Trijicon RMR, Holosun 507c, Holosun 507 Comp, Holosun 407c, Gideon Optics Omega & more.
The enclosed Defender CCW is not currently available in FDE. However, the open emitter model is, and can be found linked below:
https://www.opticsplanet.com/vortex-defender-ccw-1x-moa-red-dot-sight.html?_iv_color=tan
No, the RMRcc uses a proprietary footprint, the Vortex Defender-CCW Enclosed uses the more common Shield RMSc footprint.
Yes, mounts perfectly to a 48 MOS without any adapter plates and comes with necessary hardware. So a 43X MOS shouldn't be an issue.
The Vortex Defender-CCW Enclosed Solar Micro 1x20.2mm Reflex Red Dot Sight will be compatible with any optics ready Hellcat pistol, without the need for an adapter plate.
This appears to be a Typo on the listing from Optics Planet. This is not a prismatic sight it is a red dot sight with an emitter.
The concealed carry version of this is RMSC footprint, so it should fit if you have the version of the Shield that came with the RMSC or Holosun K footprint.