Engraving on Greek Mannlicher–Schönauer M1903/14 Carbine Stock

[Hallibag]

Can anyone tell me what is carved into the stock of this Greek Mannlicher–Schönauer M1903/14 carbine? Google Translate isn’t proving very helpful:

[aghsmac1]

Must be the initials of the soldier's name: ΦΙΓΚ=FIGK. Probably ΦΙ, as the first name, from ΦΙΛΙΠΠΟΣ=Philip.
Aghs

[Hallibag]

Thank you, Aghs!