Have a guy trying to sell me a left handed rem mod 700 in 308. It has a bull barrel an is 26" long. A McMillon stock. AX stamped on side of barrel. It is stamped Rem Model 700 . He claims it to be a 5R. My research does not show a 5R in that length barrel. Can anyone help me maybe identify this gun? He said it came with this stock on it. Nice gun but I would really like to know exactly what this setup is before I purchase it.