What receivers do these bolts belong to?

[ballistictip1088]

These were in a parts lot I ended up with. I am going to sell them and wanted to verify what actions they went to before listing. Looks like a Mauser possibly? Appreciate any help!

 

[Haney]

P17 and two Mausers,one Mauser with bolt handle mod ? Just a guess .

 

[ballistictip1088]

P17 and two Mausers,one Mauser with bolt handle mod ? Just a guess .

That was a quick. Figured someone here would know. Thank you very much