This is the RIGHT cartridge guide Winchester model 94 Pre 64 Late PRODUCTION30-30 cal with production from ~1950 through 1964. In the picture it is the upper guide, and note the difference in the lower right cut - these later guides do not have the lower right cut that the earlier gides had, permitting the fingerlever room to move back-and-forth. This part keeps the cartridge in the correct position as it enters the chamber. The screw that goes through the hole in the cartridge guide and holds it in place by threading into the side of the receiver is part number wp71h. These are ORIGINAL parts so the finish varies. The overall length is 2 1/4 inches long.