This Winchester manufactured 22" long barrel in 308 Win. caliber with the front sight ramp and gas cylinder housing is designed for the model 100 semi-auto rifle and is in very good condition exhibiting a mixture of thinning original blue finish with a brownish gray patina. All printing is clear and fully legible.  (file photo)

Note: Winchester model 100 semi-auto rifles with the following serial numbers have been observed with this part: 17438, 17678, 19677, 21939, 106996, 142276 & 137797