Garand parts have been imported from most foreign users by now. There were a lot brought in from places like Norway, Denmark, Greece and Italy. I'd imagine that S. Korea has been sucked dry by now as well.
You will find repro parts being sold by GPC, for one. These include later pattern rear sight pinions and lock-bar rear sight components and clip latches. Newly made, non-USGI replacement barrels, op rod springs and wood are also available.
Be careful not to use Chinese made Norinco rear sight components because these are made from softer steel and, in most cases, won't work with USGI components. The most expensive parts to reproduce would be op rods and gas cylinders and there's quite a demand for rebuilt ones.
You will find repro parts being sold by GPC, for one. These include later pattern rear sight pinions and lock-bar rear sight components and clip latches. Newly made, non-USGI replacement barrels, op rod springs and wood are also available.
Be careful not to use Chinese made Norinco rear sight components because these are made from softer steel and, in most cases, won't work with USGI components. The most expensive parts to reproduce would be op rods and gas cylinders and there's quite a demand for rebuilt ones.