This Remington manufactured 25" long early variation barrel in 22 Short, Long, & Long Rifle caliber is for the model 510-P Targetmaster bolt action rimfire rifle which has no provision for a rear barrel mounted sight and is in very good condition exhibiting a mixture of thinning original blue finish with a brown patina and having a few scattered specks of light rust. The bore is bright and rates very good to near excellent. The early variation barrel has the earlier barrel markings.  (file photos)

NOTE: Remington model 510-P rimfire rifles with the following year/serial numbers have been observed with this part: (DYY) September 1952