Hard to find in original condition...great little carbines. Did you grab it?
Go over to gunboards and search for argentine engineers carbine, or cavalry carbine.
Been looking for one for years that wasnt sporterized, ended up finding a Swede M94/14 last month that I couldnt pass up.
If its 500 or less, get it.
Looks to be a Calvary carbine. Not a sporterized. They had no bayo lug and a bent over bolt handle . . Don't see them to often and it looks to be in above average condition .The phantom will probably chime in soon and date your rifle exactly by the letter prefix.Folks mistake the engineers carbine as a Calvary Your is the Calvary. Good score