Is it an 03 ar 03A3?
Springfields are great rifles, but I personally would not shoot one if it is a 1903 made @ Springfield Armory with a serial number below 800,000 or if made by Rock Island Arsenal below 285,507.
These are considered "low #" receivers and their strength is questionable.
RIA began double heat treating receivers after 285507 and SA after 800000. The best 1903 receivers were nickel steel and SA began using this alloy after # 1275767. RIA after 319921.
All 1903 A3's have nickel steel receivers. The A3's had the male dovetail on the rear receiver ring for mounting an aperature sight.
If the rifle has a high number receiver, it sure should be worth the asking price IMHO.
Regards,
hps