This Remington manufactured short variation trigger spring is for the model 510 Targetmaster bolt action rimfire rifle and is in near excellent condition with light wear. This short variation trigger spring measures just over 3/8" in length. (file photo)

Note: Firearms with the following date codes (month and year of manufacture) have been observed with this part: CL (April 1942), ESS (Oct. 1947) & DTT (September 1948)