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No. What you seek is the Langdon Tactical trigger job in a bag.
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That actually comes with the WC trigger bar that the OP is referencing.
At any rate, I've added one of the WC ultimate action tune trigger bars to my 92A1. I will say it did drop in on my gun without any fitting needed. What it did for my gun so far as i can tell is move the break point in both DA and SA a little further back which in turn accomplishes two other things which are advertised. First is it lessens over travel (which it absolutely did, my gun with the stock trigger bar had way too much overtravel), and it also allows you to use pretty light hammer springs while keeping reliability with primers because the hammer gets a little more arc in its swing.
The kit comes with a few different weight hammer springs and my gun popped all the different primers i tried with the lightest spring in the kit, which was 12lbs. I settled on the 13lb just for a little more margin for error with primers. My DA breaks just under 6lbs and my SA is about 3.25-3.5lb iirc. DA is smooth as hell but can't say if it was from the trigger bar or the Elite II hammer i added previously. Reset also seems to be a tad shorter.
As an added note, the WC action tune was the last part i added to my gun. I previously added the WC steel short reach trigger, 16lb D spring, and the aforementioned hammer. Nothing else done to the internals after the trigger bar install.
This is my first/only Beretta currently so I'm not sure what kinds of results others are getting with swapping in similar parts. My completely stock trigger pulls were around 12lbs DA and about 5.5-6lb SA. D spring dropped the DA to about 8-9lbs and SA in the lower 5lbs. If i had known about the Langdon kit before i got all those other parts I'd have just bought that from the get go fwiw.