The Russian Mosin Nagant Forum

Been a while since I've been on here, but I've just acquired one of the most unusual Mosin Nagants I've ever had.
This is not an ‘ex Dragoon’, but an actual Dragoon (?) Features are as follows:
1928 Izhevsk barrel mated to a 1921 Tula receiver
Not one matching number, not an import mark to be found anywhere.
‘Konovalov’ rear sight, 91/30 style globe front sight.
Sling swivel holes drilled and filled at the forestock, and under the buttstock (much like the Austrian style)
Faint roundel on right of butt with graffiti, Cyrillic 'A' on left with graffiti.
No evidence of Finnish or SCW use. Patina is absolutely consistent throughout the rifle. This piece has been around.
I have to stress, no evidence of the later 'globe sight' being added to the '28 Izhevsk barrel. This was made for this. So, a prototype? Trials rifle? I haven't had it apart yet to see if it has a squared or round attachment to the magazine.
It's a real puzzle. Eager to hear any thoughts.

For whatever reason, I'm having trouble showing pics. Says file too large, have never had a problem before. Any suggestions?

Resize your pictures smaller.

Tula, Izhevsk, Sestroretsk and other factories did not mixed barrels and receivers. In addition, Konovalov’s sight is paired with a closed front sight (91/30), this has never happened in nature ;) I think Konovalov was transferred from another rifle. Try to remove the Konovalov, and I think that under it there will be two holes for the pins from the 91/30 scope. Show the photo, please.

The arsenals absolutely did use older receivers from theirs or there arsenals sometimes. Not uncommon. Sounds like you have a well used non-matching dragoon that simply had a 91/30 front sight installed. My bet would be on a Spanish import.