I'm thinking of going to a 14.5" barrel (fixed fh to make 16") for my Colt 6920, seems to be more efficient to sell the old barrel and buy a new one. Original is from 2008, less than 500 rds through it (yeah, I know many do that in one day lol, but most of my shooting has been with pistols). What would be a fair value and do you guys think there'd be much interest? Thanks.