Remington model A3-03 N4

[dvader17]

Hello,
I am new to this and was in hopes someone here could tell me what i have exactly. I have a US Remington Model A3-03 that i believe is a N4. Although it has the front sights it has the concave bolt that was on the N4. Serial number is 3796108. could someone tell me what it is for sure?

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[m1903rifle]

It is a M1903-A3. The A4's were in three serial number blocks: 3,407,088 - 3,427,087,......Z4,000,000 - Z4,002,920,......and 4,992,001 - 4,999,045. The concave bolt does not make it an A4.