I've mentioned this on here before, but I bought my 3" from CDNN in Abilene,Tx. Some of you are probably familiar with them. They handle a lot of closeout items at very good prices. The items are generally discontinued and/or stuff that proved to be unpopular with buyers.

At the time I bought mine, I believe CDNN had only the 3" version. Other barrel lengths were likely more popular and may not have been sold through CDNN at closeout prices.