So I have a first gen GSG-5, it has a good 10-20k rounds thru it..... Yeah, it has been a good gun with very little actual maintenance required on it during that time. Replaced a hammer spring, two bolts striped on the bolt housing assembly, and had to reprofile the fire pin once as it blunted, but this may be the one that breaks the camels back.
I recently noticed the cases starting to bulge near the rim and found the culprit, a crack has formed in the barrel at the extractor groove. Cases are not rupturing, yet, but figured I would see if anyone has any leads on where I might be able to find a replacement?