The Vintage US Springfield O3-A3 1903 Rifle Complete Bolt Assembly is a genuine part for a 30-06 caliber rifle made by US Springfield. This bolt assembly is crafted from steel and is designed for the US 03-A3 /1903 Springfield rifle. With its vintage nature, this product holds historical significance and is a must-have for collectors or gun enthusiasts looking to restore or customize their rifles. Made in the United States, this bolt assembly embodies quality craftsmanship and attention to detail. Marked R on the bolt lever.