I need to know what parts are missing from this bolt, and what model it's compatible with. I looked through many schematics, and it closely resembles the model 3.
If someone recognizes this style bolt, I'm also interested in knowing how the cocking mechanism functions, I have looked over the schematics of the model 3 bolt, and with mine missing parts and me being unfamiliar with this gun, I'm having a hard time definitively understanding how it works, and what's missing.
The info stamped on the barrel is as follows:
Springfield Arms Company
Chicopee Falls, Mass. U.S.A.
22 SHORT LONG
OR LONG RIFLE
"CHALLENGE"
(and an encircled "14" )
Thanks for any help.


https://drive.google.com/file/d/1R_6...ew?usp=sharing

https://drive.google.com/file/d/1Aiy...ew?usp=sharing