Need to contact someone that has put a longer barrel on a Colt Walker- ASM, Uberti, etc. I have seen some pictures of some that have made some time back, but can't contact anyone that has actually done it. Don't need to hear from folks that think they know or have an idea, but somebody that has actually done it. Have wanted to make one since I visited the Cody museum some years ago. So if someone can direct me, Thanks.