This Remington manufactured late variation trigger housing is for the model 581 bolt action rimfire rifle with the late style sear, safety detent assembly instead of the plunger assembly, and the safety retainer pin instead of the retaining screw. This housing is in very good condition with light wear. (file photo)

Note: Firearms with the following serial numbers have been observed with this part: 1194337, 1233428, A1011895, A1033051 & A1045818.