In this Springfield Armory video featuring Tau Lam, there appears to be a Springfield roll marked 2011 with a slide mounted RMR. The pistol appears around 2:50.
Here are two screenshots; in the first you can see the holstered pistol as well as the high-capacity magazines on the belt. In the second you can see the RMR and what appears to be a 2011 frame (note the trigger guard screw).
Interestingly, Agency Arms has recently been teasing a collaboration with Ronin Tactics, and has been coy about the base gun.
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