All Henries are built by Uberti including Taylor's. And all are pretty much the same. I bought mine at Sportsman's Warehouse and it is a Civilian Model. I don't know if all of them have the trapdoor in the stock, but the civilian version does. I love mine.
Fit and finish is very good in my opinion. If you are familiar with either the 1866 or 1873 Winchester, the Henry functions just like them. Like them the Hnery is a toggle link design. Tend to be very smooth. Biggest issue with a Henry is the follower in the magazine tube. You either need to learn the Henry Hop or make a spacer stick to go between the magazine follower and last cartridge loaded. You don't want the follower to hang up on your hand which causes feed issues and also keeps the follower from snapping against the last cartridge. I use a spacer stick. If there is a high primer on a cartridge there is the remote possibility of a detonation in the magazine if the follower snaps. Also never let the follower snap in to place when you load the magazine, for the same reason.
The Henry rifle and BP are made for each other.
Mine has never had a smokeyless round shot through it and never will as long as I own it.
A quick recommendation before I go too much further. When you get your rifle and if you are going to shoot BP in it, I would recommend getting it in .44-40 and not .45 lc. If I had mine to do over again, that is what I would do. Another suggestion is to use Big Lube bullets in it regardless of caliber. I have started using Big Lube bullets in mine and it is noticably cleaner. The . 44-40 is the cleaner of the two cartridges in comparison to .45 lc. I get my Big Lube bullets from Springfield Slim.
Regarding the barrel getting hot shooting BP through the barrel in the summer. In a word, it gets
REALLY HOT. But I figure the style points make it all worth it.
Ransom Gaer