Remington 512 parts, barrel, trigger, sear, safety, tube mag, receiver, 525 bolt SCOREMASTER

The Remington 510 is the single shot version of the series, the 512 is the tube mag fed version. The 525 is an updated mag fed. The barrel with excellent bore here is "PSS" or June 1947 and is stamped "512" but fits all the "500" series. The receiver is unmarked and must be treated as a firearm per rules is $50. The bolt I think can be used in all models but can be identified as a 525 because it has different extractors and retainer, unfortunately it is missing the extractors and retainer, so despite looking near new is just is $50. The insert (below chamber) is for 512 only, is $20, carrier assembly is $40, ejector $20, mag tube inner $35, outer $25,  the other little parts you can see in the photos will be inexpensive or free if you buy some big parts. Write for close ups (send email for higher resolution photos). Small parts are maybe $2 to put in an envelope, fatter parts in a TYVEK are $6, too long parts have to go in a tube or whatever so need post code to look up.