Ok, Shield RMSc. Know quantity $400
Shield SMSc. Unknown. So far all I have seen it is on the Springfield Armory store, $299.00.
Sig Romeo Zero. Little known. Least expensive of all. $199

I have heard that Shield is the manufacturer for the Romeo Zero, IDK.

Anybody have the SMSc? Romeo Zero? I figure they wouldn’t have auto brightness. That would probably be the price difference but I don’t know.

I think the biggest difference between them is the polymer vs aluminum bodies. I believe all three have auto brightness, as there don’t appear to be any external controls on any of them.