This Mossberg manufactured bolt assembly with second variation metal safety is for the New Haven model 495B bolt action shotgun in 12 gauge and is in very good condition except there may be a film of visible rust staining; exhibiting a brownish gray patina with some original blue finish, surface rust and light wear. (file photo)

NOTE: Mossberg / New Haven model 495B shotguns with the following year/serial number have been observed with this part: 389270