Yes, it will.
This JP Enterprises Red Dot Sight will fit a Kimber Mako R7.
The JP Enterprises Red Dot Sights - JPoint 4 MOA Dot Sight uses the Shield RMSc footprint, also known as the J-Point footprint. It will be compatible with the Hellcat OSP.
Yes, the JP Enterprises JPoint 4 MOA Dot Sight will fit directly to the RMSc optic cut found on your Hellcat Pro.
The JP Enterprises Red Dot Sight uses the Shield RMSc footprint and would only be compatible with Leupold DeltaPoint Pro mounts and Shield RMSc mounts.
Once the battery is installed in the JP Enterprises Red Dot Sights - JPoint 4 MOA Dot Sight the sight is permanently on. The battery life is from 6-12 months according to the manufacturer.
The JP Enterprises Red Dot Sights - JPoint 4 MOA Dot Sight shares the same footprint as the Shield RMS. You would need a dovetail mounting plate that is compatible with that footprint in order to mount the JP Enterprises Red Dot Sights - JPoint 4 MOA Dot Sight to a Kahr CM9. Unfortunately we do not have a dovetail mounting plate for the Kahr CM9.
The JP Enterprises Red Dot Sights - JPoint 4 MOA Dot Sight may fit a Girsan Regard MC. You would need an adapter plate to mount to the rear sight dovetail. The JP Enterprises Red Dot Sights - JPoint 4 MOA Dot Sight uses the Shield RMSc footprint. Since, the Girsan Regard is a Beretta 92 clone, the adapter plate below may work. However, you may need to contact Girsan for a compatible mounting plate.
https://www.opticsplanet.com/leupold-deltapoint-pro-dovetail-mount.html?_iv_gun-model=beretta-92
Yes but you will need a picatnny mount. https://www.opticsplanet.com/jp-rifles-jpoint-mount-adapters-for-rifles-and-shotguns.html
The Romeo Zero and Jpoint share the same footprint and can be mounted on your P365XL.