Dstavlo, what gives you the thought that this is not an intact Consol Conversion? There is no cone-and-bolster conversion apparent in any photos shown, that is very apparent in the 3rd photo showing the top of the barrel's breach. I have no doubt that it is an Augustin locked Consol Conversion to percussion.
As far as the model date, it may be a variant of the Austro-HungarianM1828 musket but djoseph100, the OP, clearly states that "The barrel is 33.5 inches, with another two inches of a flange that is screwed into the stock." This indicates that the barrel is 33.5 inches long with a 2 inch long breach plug tang. Even with the extra two inches of the tang added, it does not equal the 42 inch barrel of the A-H M1828 musket and this gun does appear to be in it's original configuration, it doesn't appear to have been shortened. Did the M1828 have brass bands, trigger guard and buttplate? As far as I know, only the A-H M1842 Infantry Musket was made in a variant with brass bands but most had steel bands. With it's short length and brass hardware, that is why I postulated above that it could be a special model for Gendarmerie (Police) use. I could be mistaken about that but, judging by the length, it is certainly not a standard musket or infantryman's weapon.