This Japanese manufactured 25 7/8" long barrel with rear sight assembly having the folding aircraft wings and front sight with guards is for the Type 99 Arisaka bolt action rifle in 7.7 caliber and is in very good condition exhibiting a mixture of original blue finish and a brown patina with some specks of light rust. The bore is dark.  (file photo)

Note: Japanese Type 99 Arisaka bolt action rifles with the following arsenals and / or serial numbers have been observed with this part: 16866 & 21908