Yes, these should work no problem.
The OpticsPlanet Exclusive Sightmark 1x Mini Shot A-Spec Reflex Sight uses the Docter/Noblex Footprint.
These should work with the RMR footprint.
If you are referring to the MOS cut, then yes. Using the included Docter adapter plate (Plate #1) with your Glock, you will be able to mount this optic.
Yes, the OpticsPlanet Exclusive Sightmark 1x Mini Shot A-Spec Reflex Sight uses the Docter footprint, which is compatible with the UTG RDM20 series of mounts, which were designed to accommodate optics using the Docter footprint.
You will need to purchase and install the Evolution Gun Works Vortex Viper/Venom Sight Mount for the Ruger SR9, which can be found by using the link below:
https://www.opticsplanet.com/evolution-gun-works-vortex-viper-venom-fits-burris-fastfire-and-docter-1-811-in.html
The OpticsPlanet Exclusive Sightmark 1x Mini Shot A-Spec Reflex Sight could be used with a Taurus G3. The OpticsPlanet Exclusive Sightmark 1x Mini Shot A-Spec Reflex Sight uses the Docter/Noblex footprint so you will need a dovetail mounting plate that fits your gun and this sight. If you have an optics ready model of the G3 you will need to use the compatible Taurus Optics Plate. If you do not have an optics ready model you will need a dovetail mounting plate. The plate at the link below will work.
https://www.opticsplanet.com/evolution-gun-works-vortex-viper-venom-fits-burris-fastfire-and-docter-1-811-in.html?_iv_gun-model=taurus-g3
The OpticsPlanet Exclusive Sightmark 1x Mini Shot A-Spec Reflex Sight uses the Docter/Noblex footprint. If you have a PSA Dagger that has a slide cut to fit this footprint it will work.
The OpticsPlanet Exclusive Sightmark 1x Mini Shot A-Spec Reflex Sight uses the Docter/Noblex footprint. The OpticsPlanet Exclusive Sightmark 1x Mini Shot A-Spec Reflex Sight can be mounted to a Canik TP9SFX with the corresponding mounting plate from Canik.
The OpticsPlanet Exclusive Sightmark 1x Mini Shot A-Spec Reflex Sight uses the Docter/Noblex footprint. So if your PSA Dagger has a slide cut to fit the Docter/Noblex footprint then it will fit. If your PSA Dagger has a slide cut for another mounting footprint then the OpticsPlanet Exclusive Sightmark 1x Mini Shot A-Spec Reflex Sight will not fit.