Hi Brent, no sir, the CR920 magazines are proprietary.
Other Shadow System pistols can use Glock magazines as well as Magpul magazines, but the CR920 magazines are proprietary.
It will fit Glock 43X MOS & 48 MOS holsters, but the mags are not compatible.
Stay safe & have as great day!

Hi Brent and welcome. The Shadow Systems CR920P can use standard Glock magazines designed for the Glock 43x, as it is essentially built on the same platform, meaning most aftermarket Glock magazines compatible with the G43x will also work in the CR920P; however, Shadow Systems often recommends using Magpul GL9 PMAGs for optimal compatibility and reliability. Cheers and stay safe!