Believe the Pietta'sare made with 6 1/2" barrels, which is a bit shorter than orginals (the originals I've seen are 7 1/2"...just 1/2" shorter than the .44versions). The brass trigger guard is normal, that's how most of the originals were made (maybe all of them...the ones wehre I couldn't tell had been plated at some time). Belive there are some small dimentional differences...but other than the barrel length it's a pretty close copy.
Except for the size of the holes in the barrel and cylinder, it's the same as their .44 version.
Sights are differnt....at least the older versions of the Uberti .36 used a dovetailed front sight. Same shape as the Pietta version (both are the same shape as the originals) but the Pietta version is staked to the barrel and non-moving. Not sure if all the Uberti's have the dovetail front or if all the originals did...were several model varitaions and I'm not up on the changes each one entailed. In any event, have run across more than a few originals that had their barrels bobbed back at least once in their long history, so a 1" short version wouldn't be out of place.
IF you like Remingtons and they point well for you, then consider the .36 Rem. repro. I've been a .36 fan for a lot of years, figuring as I'm NOT using these guns on people but on paper and plinking targets, the small ball isn't much of a penalty.