It is you can see the tell tale 9mm mag being slammed into the mag well by Mr Selleck.
The channel in the side is very distinctive. It’s still visible, although more subtle once the magazine is seated.

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What!? 77 posts and I'm the only guy who carrys the torch for the "House Brand" 9mm 1911? Really there's no more difference in the .45 vs 9mm in the 1911, than there is in the .357 vs .44 in the N-frame.
Interestingly enough, this Series 1991 Colt (made in 2012) in 9mm showed up in a local gunshop not long after my last post in this thread and I took it home. It’s a interesting mix of Series 80 slide on a more or less 1911A1 frame with A1 style trigger, safety and slide release, but with a flat mainspring housing.


I’m not going to stop carrying my pro sized alloy framed Kimber 1911s in either .45 ACP or 9m anytime soon. I’m also still not a real Series 1991 fan given the Series 80 slide and trigger operated firing pin safety.
However I am also *not* one of those skill limited trigger snobs who can’t shoot a pistol well and think that unless it’s got a sub 1.5 pound trigger the accuracy problem is caused by the gun rather than the shooter. They need to buy an 1895 Nagant and shoot it DA for awhile. They’ll never complain about a trigger ever again. The Walther PP is another good choice for trigger snobs to shoot to get over their trigger issues.
The trigger on this one actually isn’t bad at all. I just object to the Series 80 because it’s not the original Series 70, much like I object to the rebounding hammer Winchester lever guns because they don’t use the original Browning system. Admittedly a typical late 50 ish “get off my lawn you darn kids” attitude.
In any case a full size 1911 in 9mm is a joy to shoot on the range and it’s a good way to introduce new shooters to the 1911 format without scaring them off with recoil.
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In that regard, I picked this RIA 1911 in .45 ACP up for dirt cheap about a week earlier from a guy who thought he wanted a 1911 in .45 ACP but was intimidated by the recoil. He was all of 6’ 2” and about 225 pounds, so I was surprised at his reaction to it.
I’m not a RIA fan boy, and I don’t like the sights on it. But to be fair this has proven to be a very reliable 1911, as is the RIA Baby Rock I bought about 10 years ago. I bought the Baby Rock to see how well a $250 .380 blow back mini 1911 could be. It was surprisingly just as accurate and even more reliable than my already quite reliable and accurate Kimber Micro which cost more than twice as much.
I bought this RIA 1911 for the same curiosity based reasons and it hasn’t disappointed. If you want a 1911 on a tight budget it’s a solid option - at least this one. Quality might vary a bit between pistols.