This Remington manufactured late variation bolt head assembly consists of the bolt head with flat face, firing pin assembly, and the extractor assembly for the model 581 bolt action rimfire rifle and is in very good condition with light wear. (file photos)

Note: Firearms with the following serial numbers have been observed with this part: 1149412, 1185309, 1233428, A1011895, A1033051 & A1045818.