The P365 may fit in the Small though it would be tight. The Medium would be the best fit.
The Extra Large will fit the G22 though it will not fit the optic.
You can use the Large size holster.
This is an off-body holster, it does mount on a belt. It's designed for stowing off the body, such as in a car or home. It has a Velcro backing. Fitment will depend on the model of your Ruger .40. Please contact us at techsales@opticsplanet.com with the model of your Ruger and we will be happy to assist further.
The medium size should fit your G2c.
We need additional information in order to find the right fit. Please contact us with the make and model of your pistol and we will be happy to assist you further.
The Large size should fit your P229.
The medium size should work for the 43.
Please email us at TechSales@opticsplanet.com. We will need to know the make, model, and caliber of your firearm. Once we have this information, we can assist you further.
The M&P Shield would use a size Medium.