Been a while, so here you go,
RIA 9MM/.22 TCM combo. Truglo sights I picked because I really like the aggressive hook on the rear sight for emergency racking.
It's not my first double-stack 1911, you get used to the bulk if you don't have tiny hands. I like 1911s, and I wanted a double-stack 9mm. I love the trigger and the feel.
The TCM is amusing. I'm sure it will turn a jackrabbit into a fine pink mist. (I intend to verify this soon.) But it's expensive, I mostly plan to handload for it.
It came with one magazine, with a slight divot cut to help feed the TCM. I bought two more Mec Gars, I cut a coil off the spring from one of them, as far as I can tell, they all run 9mm just fine, no differences.
Now for the....annoying part. The extractor was too loose. I sent it back to RIA, they made it WAY too tight. I gave it to a local guy, he tweaked it, he said it test fired fine, I will verify soon. RIA service gets an F for that one. I went to get sights, and as far as I can tell from available web info, RIA uses a proprietary dovetail cut, and according to one shop, there are limited options to replace the sights. So I tell my gunsmith to go ahead and cut new dovetails, and I buy these Truglows to mount, and fortunately he tried them out before he started shaving anything, they fit just fine. RIA could be more clear about it and say they use a Novak cut.
SO, it's set up like I like it, but it took a lot of trial and error to get there.