Are holsters for the orignial CSX compatible with the E series weapons? Are the mags the same?

I didn't know they would come out with a different series to resolve issues. I was hoping they would just retrofit the trigger if that needed fixing. Good question though. It appears that dimensions are the same for the handgun, unless you go with the longer 3.6 inch barrel. I use a IWB 1791, which the standard 3.1 inch barrel is flush with end of the holster. The mags are another question. You would think the 10 round compliant version and the 12 would be standard and the same. Therefore one would think the 15 and 17 would be interchangeable too. The only questionable thing i notice is that the foregrip and backstrap inserts are different. The width is still 1.6 inch.

Holsters & magazines are compatible.