Barrel diameter??

[pdc]

What is the diameter of a GI 03 barrel at the muzzle end? I'm looking at a sight for my sporter but I've got a replacement barrel on mine. I've got a guy selling a banded ramp front sight that he says fits on a 24 inch Springfield barrel. I want to make sure it's close to .645. Thanks.

[mhb]

of the GI 1903 barrel is .615", but the seat for the front sight base is about .645".
mhb - Mike

[pdc]

thanks very much....