Krag Jorgensen Parkhurst Zalinski Indexing Arm

The Krag-Jorgensen was the main infantry rifle of the US from 1894 to 1903. After their experience in the Spanish American War, the United States sought a quicker shooting cartridge and attempted to stretch .30-40 to it's limits, however they ran up against the weakness of the US Krag's single locking lug system. A new rifle was in development, but two designers attempted to prolong the Krag's service life by adding features. Parkhurst developed a stripper clip as well as a guide that attaches to the rifle. An inventor by the name of Zalinski collaborated with Parkhurst on the second improvement, which was a system of indicators that could tell a shooter how many rounds were left in the rifle. The most noticeable was the indexing arm mounted above the magazine door that pivoted across depending on how many rounds were in the magazine.
The Parkhurst Zalinski index was only added to a handful of rifles and never saw any further development or adoption, not even a patent. In this video I replicate the indexing arm.

DISCLAIMER
All subjects featured on this channel are shown for historical and informational purposes only. All gunsmithing work is intended to restore the item to it's original condition, never modifying to serve any other purpose. In no way, shape or form is anything featured on this channel ever intended to be sold at any time. Any messages regarding selling a firearm, ammunition or an accessory will be removed. Everything shown is legal where the creator is located, please check your local laws.

00:00 Intro
00:18 Parkhurst Device
00:34 Parkhurst-Zalinski
01:30 How the Krag magazine works
02:01 Mock up
02:48 Ideas
03:51 Modifying the follower arm
04:13 Making the arm
05:34 Assembly
06:41 Testing & Conclusion