Here is a few of images of the changes I made to my newest old rifle. 1906 Carcano 28TS carbine. I removed the original sight and fabricated a replacement fixture (picattiny) rail to hold a red dot sight. The original sight was set to 600 meters and I don't have plans to shoot this rifle quite that far. Not out to 100 yards it will group about 6 to 8 inches.