They were going to do it for free, however they serial number they were going to put on it would've been very large and obviously placed. It really wasn't worth it to wait 6 months for my project gun and have it permanently marked in the end. So I took my refund, let the gun store strip it of useful parts (which were many as it was in good shape internally) and the ATF took the frame to destroy. It worked out better in the end. I found a blued gun which I wanted originally as I wouldn't have to strip the nickel and this gun seems to be in really good shape. So not a bad trade.