traded for a win. 30 wcf. saddle ring carbine,ser #619075, this rifle is in good condition, but it has a ladder site where most have a leaf rear site, whats the deal there? is this a after market rear site?and about when was this rifle mfg.? cute as hell and shoots great. rio7

Photo's would be a great help. Basically but not always, carbines came with three different rear sites. From serial number 0 to @900,000 they were issued with a 2 or 3 leaf express sight. From serial number 900,000 to 1,300,000 most were issued with the later sight. From 1,300,000 a leaf sight with a elevator was standard issue. HOWEVER, I am basing this on the timeline when Winchester changed rear sight dovetail locations. Again a good photo would be a big help.