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Robert, the barrel profiles should be the same but, I would verify this directly with Rock Island/Armscor Customer Service at (775) 537-1444 or by online inquiry here : https://armscor.com/support-center/contact-support/

I don't know, honey. That's too technical for me. Lol. Maybe you should contact them via email.

Robert, No the TCM model has a 4.25" barrel and the Rock Ultra full-size is chambered in 9mm with a 5" button rifled barrel.

They use the same feed ramp style as the other 9mm Rock Island 1911s.