Yes you can, just be sure to select the correct mounting plate.
You will need to use an adapter plate such as the one from C&H Precision located here: Code: 5HT-RMT-CHSHR-SAHC-HOLOK
https://www.opticsplanet.com/c-h-precision-weapons-springfield-hellcat-w-rmsc-footprint-adapter-plate.html?_iv_code=5HT-RMT-CHSHR-SAHC-HOLOK
Make sure you select the model that says Holok in the mpn.
The IWI Masada includes a plate designed to fit optics with the DeltaPoint Pro footprint. You would need to use that plate and modify it by removing the two rear lugs and shortening the front two. This will allow you to install this optic. However, this is a micro/carry optic that was not designed for full size handguns. I would much rather recommend full size optics like the Eotech EFLX, Trijicon RMR, Holosun 507 and more.
We do not currently carry the correct adapter plate that allows the 507K to be mounted to the 43X MOS slide cut. It is possible to modify the MOS cut on your slide to fit the 507K, however, this would be a permanent modification.
The Holosun Sub-compact HS507K-X2 Red Dot Sight uses a modified Shield RMSc footprint. So the optics cut on the Kimber R7 Mako may need to be modified to fit the Holosun Sub-compact HS507K-X2 Red Dot Sight.
Yes, the Holosun Sub-compact HS507K-X2 Red Dot Sights will fit on a Sig P365XL. The Sig P365XL and Holosun Sub-compact HS507K-X2 Red Dot Sights use the same modified Shield footprint.
The Holosun Sub-compact HS507K-X2 Red Dot Sights use a modified Shield footprint. So the Holosun 507K-X2 may fit but there is no guarantee.
To mount the Holosun 507K on an SAS you would need the adapter plate made by Nameless Armament. Once installed, you would have no issue mounting the 507K.
It would work with the plate that was suggested to you.
We do not have an ETA on the green dot version, I would contact Holosun.