I've spoken to the good folks at GSI, but not about extra barrels. BTW blackbearhunter - you may find many people dislike GSI because they happen to be the biggest and most successfull importer. But there service is exellent. I.E., a mate of mine had the stock of his 140-2 crack right at the one year mark of his warrenty. GSI determined it could not be fixed and sent it back to germany to be restocked, completely free of charge! Second, my local dealer sells a lot of Merkels (Charlotte is rich) and was able to get a very sweet deal for me on my 140-2 as a favor to the dealer. I ignore those guys who say "I can go to paris, brussles, or where ever and get the gun soooo much cheaper", becase that is where it has to be sent if it breaks!