They have US barrels and are listed for $445.Sarco has G3 kits advertised in SGN without barrels. You can link to their ads from their website. I only glanced at them as I was searching for something else but they were in the $450 range IIRC.
KIT INCLUDES A NEW US MADE BARREL, NEW
US MADE TRUNION, NEW US
MADE COCKING TUBE AND HANGER, NEW
NAVY POLIMER TRIGGER HOUSING, EXCELLENT
CONDITION GREEN FURNITURE, THE
REST OF THE PARTS ARE USED BUT IN VERY
GOOD TO EXCELLENT CONDITION.