This Remington manufactured color case hardened trigger assembly is for the model 521-T bolt action rimfire rifle and is in very good condition with light wear. The trigger assembly consists of the trigger, sear, sear stud, trigger spring, and the trigger spring plunger. (file photo)

NOTE: Firearms with the following year/serial number have been observed with this part:

NSN: LJ (February 1940) & AC (March 1956)