very rare to find 1903 rear sight base

[RCS]

Found a early open bottom 1903 rear sight base. Never seen one before that was not on a barrel. The 30-03 rifle in 1905 had this rear sight base and as the rifles. were re-chambered to 30-06 the rear sight base was moved forward. Also early Rock Island and Springfield rifles manufactured in the new 30-06 caliber also used this open bottom rear sight base.

Photos show both a Springfield and Rock Island factory 30-06 rifles with the open bottom rear sight baseAttachment 122022Attachment 122023Attachment 122024Attachment 122021

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