Good evening to you!! Yes, the Ruger PC Carbine is designed to be compatible with Ruger SR-Series/Security-9 magazines and Glock magazines, according to Ruger. The RXM uses Glock-pattern magazines, so magazines from the RXM (which are Glock-pattern magazines) will fit into the PC Carbine's Glock magazine well. Hope this was helpful. Have a good rest of your day.

These are basically Glock style magazines with the new RXM. So if you have the adapter on your Ruger PC to accept Glock mags then yes, they'll work.