Is this a CMP Greek return '03?

[Rick the Librarian]

That bolt handle doesn't look swept back.
Doesn't that mean it's an early serial number one and should't be used.

The receiver is well into the higher numbered receivers for Rock Island (285,507 and above). If you mean the bolt, could be a earlier case-hardened one, depending on the markings. The jury seems to be "out" on the use of earlier bolts. CMP usually changed them out on their HN rifles. If it were me, I'd invest in a M1903A3 or WWII contract bolt if I was going to shoot it to any extent.

Information

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[Fozzybear]

That's what happened to me some time ago, I picked up a tidy Rem 03a3 and posted a pic on Surplus rifle and someone picked up on the straight bolt.

Then as luck would have it I picked up a complete new 03a3 bolt in Australia.

[LeagleEagle]

The (Rock Island) bolt is marked RIo on the underside of the handle. Vi shooters 1903 page indicates these were produced late 1918 and is nickel steel.