chrome barrel

I bought my Sig516gen2 patrol on May 2013 and I am still confused what kind of barrel it has. Sig website just says "Free-floating military grade Nitride treated barrel" but on a 516Gen2 product book, it says "Chromed Line Barrel" However, in Sig 2015 Product Catalog, it doesn't show 516 is...

I'm new on this site, and new to the whole handgun world. I'm looking to purchase my first handgun and have decided on the 226 MK25. After doing a ton of research, I've stumbled across a few reviews saying that some MK25's have chrome lined barrels and some don't. I saw one guy say that the...