In the spirit of Full Disclosure.
One thing I change with any 1911 I buy from RIA , if it or any other brand comes from the Factory with a Full Length Guide Rod , thus requiring me to use a Paper Clip as a disassembly tool ?. That is immediately replaced with the Masters ( JMB) intended design.
One beef I have with the RIA 10mm is the Bushingless Design and Bull Barrel set up.
Barrel Bushings are a source of Refining a 1911’s accuracy …its also a buffer regarding wear between the Slide and the Barrel…2 of the 3 most expensive parts on the entire pistol.